Bank, and Gilder Gagnon Howe & Co. The tower sits atop a 3-story structure called the Colonnade Building. The first three stories were built in 1923 and the top 23 stories were added in 1927–1928. During the expansion, the original building's three-story Ionic supports were kept. The new expansion, designed by Shreve & Lamb, hosted General Motors' headquarters from 1927 to 1968. In 1969, Midtown Realty purchased the building's lease, and in 1980, acquired the land. Half of the building was leased by Bankers Trust until the late 1980s, and Newsweek leased a third of the building from 1994 until 2006. When the Moinian Group purchased the building in 2000, the building assumed its current name; a subsequent renovation refurbished the exterior and removed all remnants of the Colonnade Building. A neon sign for CNN was located on the roof of the building from the mid-2000s to 2015. A Nordstrom annex is at the base of 3 Columbus Circle. 4 Columbus Circle, an eight-story low-rise located at 989 Eighth Avenue at the southwest corner of the intersection with 58th Street, was built in the late 1980s. Swanke Hayden Connell Architects designed the building, which houses the furniture company Steelcase on the upper floors and a Duane Reade and a Starbucks on the ground floor. Cerberus Capital Management bought the building in 2006 for $82.9 million. In 2011, it was sold to German real estate firm GLL Real Estate Partners for $96.5 million. Directly to the west is 6 Columbus Circle, an 88-room, 12-floor boutique hotel called 6 Columbus. Acquired by the Pomeranc Group in 2007, the hotel was put on sale in December 2015. A tower is planned for the site. Transportation The buses all serve the circle, with the M5, M7, M20 and M104 providing through service and the southbound M10 terminating near the circle. Under the circle is the New York City Subway's 59th Street–Columbus Circle station, served by the . Cultural significance Geographic center Columbus Circle is the traditional municipal zero-mile point from which all official city distances are measured, although Google Maps uses New York City Hall for this purpose. For decades, Hagstrom sold maps that showed the areas within or from Columbus Circle. The travel area for recipients of a C-2 visa, which is issued for the purpose of immediate and continuous transit to or from the headquarters of the United Nations, is limited to