Best Art Galleries in London 2025: Tate Modern, National Gallery & Beyond

London is home to some of the world's greatest art collections — and most of them are free. The National Gallery, Tate Modern, Tate Britain, the V&A, and the British Museum alone could occupy weeks of serious exploration. Add in the cutting-edge commercial galleries of Mayfair and Shoreditch, and London's art scene is genuinely without peer.