K2 is a residential tower block in Leeds, UK. The building is situated in the city centre, on Albion Street and Great George Street, opposite St John's Centre. The lower two floors contain commercial premises, including a Jongleurs Comedy Club, Bar Risa (a bar with a capacity of 1500) and formerly a Hard Rock Cafe. The building is the joint 9th tallest building in Leeds. The building has 20 stories and is 242 feet (74 m) tall. The commercial parts of the building are known as 'The Cube'.