Canary Wharf is the city's financial district, and also known as the financial capital of Europe. Over 90,000 people work in Canary Wharf, which has 30 buildings with over 200 shops, bars and restaurants. It is also known for having UK's three tallest buildings: One Canada Square at 774 ft., followed by 8 Canada Square and the Citigroup Centre, both at 654 ft.