City Hall is the New York City Subway station famous for its original Guastavino tile vault.
The former IRT station beneath Manhattan’s City Hall was designed as an elegant civic gateway rather than a purely utilitarian platform. Its ceiling uses Guastavino structural tile, a fire-resistant vaulted construction technique associated with major New York buildings. Skylights, chandeliers, and colored tile added to the station’s ceremonial appearance.
City Hall opened with the first subway in 1904 and closed to regular passengers in 1945. Its curved platform and short length could not accommodate longer trains safely. The station’s track remains part of the active City Hall loop, which is why passengers on certain downtown 6 trains may glimpse it.
Other subway stations contain historic tilework and decorative mosaics, but City Hall is especially recognized for its complete, preserved vaulted interior. It is sometimes confused with Grand Central’s shuttle platforms, which also have notable architectural features but are active passenger facilities.