2. There are Two Sky Bridges at Chelsea Market

For fans of elevated walkways, Chelsea Market has two sky bridges – one spanning 15th Street and one spanning 10th Avenue. The 15th Street one is clearly of an earlier time period, likely when the Romanesque main structure was built. The New York Times surmises that the aluminum Art Deco one below was completed in the 1930s, when the Nabisco Company staff architect  Louis Wirsching Jr. redesigned the bakeries along the 10th Avenue side, adding the freight run through that is now home to art installations and vendors.