Vanessa Bell at Dulwich Picture Gallery and Sussex Modernism at Two Temple Place

The Dulwich Picture Gallery is always worth a detour. Not only does it have a diverse and perfectly sized permanent display, but the curators are very good at putting on interesting additional exhibitions, often by artists who are not that well known.
At the moment you can see works by Vanessa Bell, prolifically creative and sister of Virginia Woolf the author.
 

A woman after my own heart – from age eight I was obsessed with making repetitive patterns on graph paper

More of Vanessa's work can be seen at Two Temple Place as part of their current exhibition Sussex Modernism which includes some truly gorgeous sculptures by Eric Gill and David Jones.
Even if this kind of art isn't your thing, do go inside this free exhibition because the interior is marvelous – it was originally built the as the Astor's London office and is only ever open during exhibitions – all wood panelling, stained glass and carved details – here's a post about a previous visit.