Skybridges, which, though rare, could once be found in various Manhattan locations, are quickly becoming a thing of the past. While erected for pedestrian convenience, the utility of these aerial walkways became less relevant as elevator technology improved over the 20th century. Despite their decline, a handful of sky bridges remain today and are always an unexpected joy to see. In this list, we will introduce you to the history and wonder of some of our favorite "skywalks" (those long gone and those still extant)!

Hudson Terminal, ca. 1928. Hudson Terminal was a rapid transit station on the Hudson & Manhattan Railroad (H & M). The terminal, which contained five tracks and three platforms, was located along Radio Row. The two 22-story office skyscrapers, which sat above the terminal, were among the world's largest when the terminal opened in 1909. The main purpose of the H & M buildings was to connect the railroad and streetcar terminals on the New Jersey waterfront with Manhattan. The H & M's only station downtown near Wall Street was designed to handle as many passengers as possible to meet the demands of rush hour traffic. In 1962, as part of the construction of the World Trade Center, the Port Authority of New York and New Jersey took over the Hudson & Manhattan Railroad. The terminal was eventually rebranded as the PATH and later, in 1972, demolished to make way for the World Trade Center. It was replaced by the original World Trade Center and an entirely new PATH station.