I spent most of my time at Tate Britain today. I have enjoyed their show The Vorticists: Manifesto for a Modern World and learned about the development of modern art (the vorticist movement) in the UK during World War I. Unfortunately, photography was not allowed at the exhibition.
Another exhibition currently showing at TB is the retrospective of British revised modernist architect James Stirling. Impressive axonometric drawings of important projects of his were displayed along with models and other information.
It was a nice surprise to see David Batchelor's work again today at TB. Though not a lightbox installation this time, his work on view is equally colourful: