Always on the move, London is busy re-inventing itself as a city of the 21st century while keeping elements of the quaint as part of its busy city life. The British Museum Reading Room combines an original structure designed by Sydney Smirke in the 1850s with an added gridshell roof by the acclaimed architect Norman Foster (2000). Another must-visit is the Tate Modern, a museum for contemporary art built into an old power station.