Photographers' Gallery
The exhibitions are wide and varied, from documentary photographers to fine artists, some long gone, and some on their way up. With the crowds and chaos of Leicester Square on one side and Covent Garden on the other, this is a welcome retreat.

The exhibitions are wide and varied, from documentary photographers to fine artists, some long gone, and some on their way up. With the crowds and chaos of Leicester Square on one side and Covent Garden on the other, this is a welcome retreat.
Check the official site before travelling; hours and prices can change.
More museums

Sir John Soane's Museum
Free, tiny, deranged — Soane's own house preserved exactly as he left it in 1837.

The Wallace Collection
Free national museum in a Manchester Square townhouse — armour, Boucher, the Laughing Cavalier.

The British Museum
Free, vast, civilisationally heavy — go for one room, not all of them.
Source: wikivoyage