Mentioned by London City Calling
22 free museums in London you need to visit
"For those who prefer more contemporary art to classical works, head to the Tate Modern on the south bank of the River Thames. Located inside of the former Bankside Power Station, the Tate Modern is Britain’s national gallery of international modern art, housing a huge collection of contemporary and modern artwork from 1900 to the present day, with artists including Picasso, DalÍ, Pollock and Warhol. The Tate Modern is the most visited art museum in Britain and the second most visited museum in the UK after the British Museum."