Opened in 1990 near Monument Circle in Indianapolis, the Chase Tower (formerly known as the Bank One Tower and originally conceived as American Fletcher Tower) is the tallest building in Indianapolis. It surpassed the AUL Tower (now OneAmerica Tower) in Indianapolis for the distinction. The building's twin spires pierce 830 feet (253.0 m) into the Indianapolis skyline, while the 48 floors of office and retail space below peak at the 700 feet (214 m) roof. It is the headquarters for Chase's (formerly Bank One's) Indiana operations.
While the building has two spires of equal height, only one of them is actually functional as a transmission antenna. The other mast is merely an architectural decoration. The Chase Tower is the 38th tallest building in the United States and 193rd tallest in the World. The tower's step pyramidal cap reflects the design of the Indiana War Memorial, three blocks due north. The War Memorial, in turn, reflects the descriptions of the original Mausoleum. Because of the height of this building, its roof was specifically designed to house communications relay equipment, in order to provide additional revenue to the building's owners.
Over the past several years, two large banners have occasionally been placed outside of the north and south communication bullpen areas of the roof in support of two of the city's professional sports franchises. These "GO PACERS" and "GO COLTS" signs are highly visible being on the tallest structure in the city.