1 Canada Square is the tallest building in London, United Kingdom. At 244 metres and 50 storeys, it is the tallest habitable building in the country (although the 330 metre tall Emley Moor television mast near Huddersfield is a taller structure).
It is named after Canada because it was built by the Canadian firm Olympia and York, which was owned by the Reichman family. In building the Canary Wharf area the company went bankrupt.
The building is commonly known as the Canary Wharf Tower after the Canary Wharf business complex of which it is a part.
In 1996, it was bombed by the IRA.
See also Tall buildings in London