One Canada Square One Canada Square One Canada Square is a skyscraper in Canary Wharf, London. It is the second tallest building in the United Kingdom at above ground level containing 50 stories. One Canada Square was designed by Cesar Pelli, Adamson Associates and Frederick Gibberd Coombes. The design and shape are based on earlier precedents buildings that include Brookfield Place and Elizabeth Tower. The building is clad with durable stainless steel. One of the predominant features of the building is the pyramid roof, which contains a flashing aircraft warning light, a rare feature for buildings in the United Kingdom. The distinctive pyramid
Citigroup Centre, London both Canada Square and Upper Bank Street, Citigroup Centre is also accessible via underground walkways from Canada Place shopping mall and Canary Wharf London Underground station - served by the Jubilee line. The Centre is also close to DLR stations Canary Wharf and Heron Quays, which provide connections with the City, London City Airport and surrounding areas. Citigroup Centre, London The Citigroup Centre is a building complex in London. It houses Citigroup's EMEA headquarters and is located in Canary Wharf in the city's Docklands. The centre provides of floor space across two merged buildings - 33 Canada Square (known as