The Knights of Columbus Building, in Downtown New Haven, Connecticut, is the headquarters of the Roman Catholic fraternal service organization, the Knights of Columbus. Also known as the Knights of Columbus Tower or The Knights' Tower, the building was designed by Kevin Roche John Dinkeloo and Associates and finished in 1969. This 23-story modern style reinforced concrete building, at 320 feet (98 meters) tall, is the third-tallest building in the city's skyline. The building was built at 1 Columbus Plaza next to the New Haven Coliseum (razed in 2007), which was designed by the same firm.