One Wall Street (originally the Irving Trust Company Building, then the Bank of New York Building after 1988, and now known as the BNY Mellon Building since 2007), is a bank headquarters building that remains one of the finest Art-Deco-style skyscrapers in Lower Manhattan, New York City.The building replaced three previous structures. It is 654 feet (199 m) tall and consists of two sections. The original 50-story building with a 36-story annex to the south. The facade, made of limestone, contains slight inwardly-curved bays with fluting to resemble curtains. On the lower stories are narrow windows with mullions, as well as ornate entrances. The massing of 1 Wall Street incorporates numerous small setbacks, and the top of the original building consists of a freestanding tower. The corners of the original building consist of chamfers, while the top of the tower has fluted windowless bays. The facade of the annex is designed in a style evocative of the original structure. Inside is an ornate main lobby with flaming-colored mosaic walls designed by Hildreth Meière.