Canary Wharf is a large business and shopping development in London, located in the London Borough of Tower Hamlets, centred on the old West India Docks in the London Docklands. Rivalling London's traditional financial centre, The Square Mile, Canary Wharf contains the UK's three tallest buildings with the exception of the Shard: One Canada Square (sometimes known as the Canary Wharf Tower) at 235.1 m (774 ft); followed by 8 Canada Square and the Citigroup Centre, both at 199.5 m (654 ft). However, according to the official Canary Wharf website, One Canada Square is 800 ft (244 m).