Washington Square Park in Greenwich Village. This huge park to gather today saxophone, blues singers, tourists and college chess players all the time, was once a swampy area in which people are challenged to duels, executions were practiced and had even served as a mass grave. One of the biggest attractions of the park, is Stanford White Arch, a marble arch 22 meters high, which was initially built in wood, and served for the artist Marcel Duchamp in 1916, climbed to the top it, declaring the pa