Tate Modern

It fills the former Bankside Power Station by Giles Gilbert Scott, who also designed the red telephone box. Herzog & de Meuron turned it into a museum in 2000, and in 2016 the Blavatnik Building, a twisting pyramid of perforated brick, was added.

The permanent collection, from Picasso and Dalí to Rothko and Louise Bourgeois, is free. The five-storey Turbine Hall hosts a major artist commission each year. From the 10th-floor viewing level in the Blavatnik you see the whole north bank.