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Crimean War (1853-1856). Siege of Sevastopol, 1854-1855, by Franz Alekseyevich Roubaud (1856-1928). The city, on the Black Se...

Crimean War (1853-1856). Siege of Sevastopol, 1854-1855, by Franz Alekseyevich Roubaud (1856-1928). The city, on the Black Sea, was besieged for 11 months. Detail. Museum of Heroic Defense and Liberation of Sevastopol. Crimean Peninsula. Ukraine.

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Pilot Prepares to Launch F-16

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Close-up of a young woman wearing a sports helmet

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Portrait of a young man standing with his hands behind his back

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Portrait of a mature woman practicing martial arts with a sword

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Two fencers in sports hall

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Nic Houser rock climbing a route called Strategic Defense which is rated 5,11 and located on Morning Glory Spire at The City ...

Nic Houser rock climbing a route called Strategic Defense which is rated 5,11 and located on Morning Glory Spire at The City Of Rocks National Reserve near the town of Almo in southern Idaho

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Man doing martial arts kick

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Mid adult man practicing kickboxing with a young man and a young woman

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Close-up of two young women practicing kickboxing

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Shaolin monks during a show on the 22nd of March 2009 in Berlin, Germany

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Young woman standing with a medal around her neck

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Doctors, nurse and patient

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Close up of Asian man in samurai armor

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Ancient Chinese Warrior_Hero

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Boy practicing martial arts with a sword

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karate training

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Woman riding mountain bike in park

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Belem Tower was built in the 16th century as a defensive position on the Tagus River and a gateway to Lisbon. Due to its role...

Belem Tower was built in the 16th century as a defensive position on the Tagus River and a gateway to Lisbon. Due to its role in the Age of Discovery and Manueline architectural style, it was classified a UNESCO World Heritage Site in 1983.

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Hispanic male holding sticks in fighting stance

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Portrait of a young woman wearing a sports helmet

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Close-up of a young man jumping and practicing martial arts

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Ancient Chinese Warrior_Hero

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Doctor

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Portrait Of Young Man Practicing Martial Arts

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Female karate instructor teaching martial arts to a young man

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Bare-chested man kicking

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Portrait of a young man holding a trophy

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Ancient Chinese Warrior_Hero

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Close-up of a young woman boxing

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Portrait of a lab technician

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Fighting by the beach

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F-16 Alert Jet in Hangar, Loaded with Live Weapons, High Dynamic Range, or HDR Image

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Woman with box gloves

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Mid adult man practicing kickboxing

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Portrait of a mature man practicing martial arts

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Nurse and patient in hospital corridor

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Ancient Chinese Warrior_Hero

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Greg Moore rock climbing a route called Strategic Defense which is rated 5,11 and located on Morning Glory Spire at The City ...

Greg Moore rock climbing a route called Strategic Defense which is rated 5,11 and located on Morning Glory Spire at The City Of Rocks National Reserve in southern Idaho USA

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Asian woman in dress doing martial arts move

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African policeman aiming handgun

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Croatia. Dubrovnik. Minceta Tower by Michelozzi. 1461.

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Three young women standing with their medals and smiling

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Close-up of a mid adult man practicing kickboxing with a young man

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headshot of young woman with cap raising her fists

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Ancient Chinese Warrior_Hero

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Infielder and runner

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Military parade on Venezuelan Independence Day in Caracas, Venezuela.

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Portrait of a group of people practicing martial arts

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Man practicing martial arts

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Man holding katana swords

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karate training

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Mother and daughter resting

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F-16 with Crew Chief in Cockpit

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Hispanic male holding sticks in fighting stance

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Men playing basketball

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high angle view of two boys practicing judo

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United States Marine Corps UH-1Y Venom helicopter prepares to launch on a combat operation in the Helmand Province, Afghanist...

United States Marine Corps UH-1Y Venom helicopter prepares to launch on a combat operation in the Helmand Province, Afghanistan

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Woman preparing for swim

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Silhouette of man holding handgun and knife

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Portrait Of Young Man Practicing Martial Arts

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Lab technician

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1950S College Football Game One Player Tackling Another Fumble

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Plastic figurine defending the goal line

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Boy dressed as a doctor

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Wooden spikes on fort wall and the commandants residence at Fort Snelling, Fort Snelling State Park, Minneapolis, Minnesota

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Young woman standing with a medal around her neck

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Close-up of a young man in a fighting stance

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Low angle view of a young woman wearing boxing gloves

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Portrait of a young woman holding a trophy

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Young Woman Practicing Martial Arts

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Castle on mound overlooking settlement surrounded by town wall.

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violent against Women

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Lab technicians

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Portrait of a young man holding a trophy

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Female karate instructor teaching martial arts to a young man

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Researcher in lab

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Locks standing in a row locked together

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Side profile of a policeman standing near a staircase holding a gun

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Ancient Chinese Warrior_Hero

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Female boxer, portrait, close-up

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Woman Practicing Tae Kwon Do

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Ancient Chinese Warrior_Hero

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An Omani man walks in through the main entrance of Al Hazm Castle. The magnificent 18th century military stronghold makes ful...

An Omani man walks in through the main entrance of Al Hazm Castle. The magnificent 18th century military stronghold makes full use of traditonal Omani defensive features boasting a massive wooden entry door, secret escape tunnels, dungeons, cannon towers, gun ports and a machicolation for pouring boiling date syrup on attackers.

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Hispanic girl in fighting stance

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F-16 with Crew Chief in Cockpit, High Dynamic Range, or HDR Image

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Girl baking in a kitchen

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Women kickboxing in gym

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Portrait of a group of people practicing martial arts

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Woman doing a karate punch

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Boy with a swimming medal

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Doctor holding patient

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Ukraine. Balaklava. Chembalo Genoese fortress. 14th century. Tower.

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Ocean City, Maryland, USA

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detail of young female boxer

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Fidel Castro, premier of Cuba since 1959, at news conference in Caracas, Venezuela.

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Three young women standing on a winners podium with their medals

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Women fighting with bow staffs

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Mid adult man breaking a stack of woods with his hand

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ESLOVENIA. (LIUBLIANA) LJUBLJANA. Vista general del CASTILLO de la ciudad, de origen medieval. El edificio actual fue constru...

ESLOVENIA. (LIUBLIANA) LJUBLJANA. Vista general del CASTILLO de la ciudad, de origen medieval. El edificio actual fue construido entre 1485-1495. La torre principal es de 1848. Europa.

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Girl holding surfboard

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Ancient Chinese Warrior_Hero

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F-16 in Flight

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EXTREMADURA. PLASENCIA. Vista de las MURALLAS y TORREONES medievales. (SIGLO XII-XIII). Provincia de Cáceres. España.

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Hispanic male karate black belt in fighting stance

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Young man kicking

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Dentist and patient

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Man performing karate stance

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United States Marine Corps CH-53D Sea Stallion prepares to land with a United States Marine Corps MV-22 Osprey in the backgro...

United States Marine Corps CH-53D Sea Stallion prepares to land with a United States Marine Corps MV-22 Osprey in the background at Camp Bastion, Helmand Province, Afghanistan

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Portrait Of Young Man Practicing Martial Arts

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Close-up of a mature man practicing martial arts with a sword

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Woman kicking

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CASTILLA-LEON. BECERRIL DE CAMPOS. Vista de la PUERTA DE SANTA MARIA, perteneciente a la antigua muralla que circundaba la po...

CASTILLA-LEON. BECERRIL DE CAMPOS. Vista de la PUERTA DE SANTA MARIA, perteneciente a la antigua muralla que circundaba la población. Provincia de Palencia. España.

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Young woman standing with a medal around her neck

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Ancient Chinese Warrior_Hero

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Studio shot of Asian businesswoman holding sword

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Dentist and young patient

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Businesswoman Entering Building, Holding Ladder

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Bare-chested man jumping and kicking

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Asian men sword fighting

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alnwick, northumberland, england, a guarded entrance with stone walls

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Girl dressed in football uniform

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Guang Gong, Ancient Chinese General in Beijing Opera Costume, Represents Protection and Wealth

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Referee separating two boxers during a fight

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Multi-ethnic men practicing yoga

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Portrait of a young woman wearing a sports helmet

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Businesswoman Standing on Ladder using Bullhorn

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Portrait of a young man practicing kickboxing

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Ukraine. Autonomous Republic of Crimea. Feodosiya. Genoese Fortress. 14th century. Tower.

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Portrait of a young woman holding a trophy

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Researcher in lab

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Ground Crew Member on Flight Line During Launch of F-16s

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Dragon flying at Hispanic women holding sword

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Silhouette of man holding handgun and knife

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Two F-16s in Flight

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Rear view of a young man standing with his arms raised

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Woman with box gloves

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Man Practicing Martial Arts In Traditional Dress On The Great Wall Of China

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Digital composite of Pacific Islander woman shooting laser guns

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Female karate instructor teaching martial arts to a young woman

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Portrait of a young man wearing a sports helmet

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Male karate instructor teaching martial arts to a young man

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Batter awaiting pitch

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Businessman in cape holding shield and sword

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Young Girl in Fighting Position

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Young woman boxing

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Male karate instructor teaching martial arts to a young man

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Portrait of a young woman wearing a sports helmet with another young woman standing in the background

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Foreman and building contractor

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Woman practicing martial arts

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Batter stretching

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Snowboarders on a ski lift

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Boy putting on swim goggles

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NAVARRA. OLITE. Panorámica del CASTILLO erigido en el siglo XIII y reformado en el siglo XV por el monarca Carlos III el Nobl...

NAVARRA. OLITE. Panorámica del CASTILLO erigido en el siglo XIII y reformado en el siglo XV por el monarca Carlos III el Noble. Fue el antiguo palacio residencia de los reyes de Navarra. Declarado Monumento Nacional en el año 1925, actualmente alberga un Parador de Turismo.

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Ukraine. Chersonesus Taurica. 6th century BC. Greek colony occupied later by romans and byzantines. Defensive walls. Sevastop...

Ukraine. Chersonesus Taurica. 6th century BC. Greek colony occupied later by romans and byzantines. Defensive walls. Sevastopol.

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Batter, catcher, and umpire

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COMUNIDAD VALENCIANA. ALICANTE. Panorámica del conjunto de escalinatas que comunican el recinto del CASTILLO con la ciudad. E...

COMUNIDAD VALENCIANA. ALICANTE. Panorámica del conjunto de escalinatas que comunican el recinto del CASTILLO con la ciudad. España.

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Hotel staff at attention

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Martial artist on beach

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Boxer training with sparring partner

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Doctor and patient

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Guang Gong, Ancient Chinese General in Beijing Opera Costume, Represents Protection and Wealth

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Group of doctors and nurses

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Muscular man posing

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Morning Tai Chi Exercises

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Portrait of a mid adult man jumping and practicing martial arts

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Hispanic male karate black belt in fighting stance

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F-16, High Dynamic Range, or HDR Image

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ITALIA. PAVIA. Vista parcial de las 3 TORRES MEDIEVALES ubicadas en la Piazza Leonardo Da Vinci. Datan del siglo XI-XII. Cons...

ITALIA. PAVIA. Vista parcial de las 3 TORRES MEDIEVALES ubicadas en la Piazza Leonardo Da Vinci. Datan del siglo XI-XII. Construidas de ladrillo y caña, tenian una función sobre todo simbólica, representando físicamente el poder de la familia a la que pertenecieron. Lombardia.