The Almeida, in Islington, is a small theatre with big influence. It's an intimate place to discover groundbreaking theatre and get up close to some of Britain's leading actors. The cafe/bar across has a constantly-changing tasty menu, relaxed atmosphere and free wifi. Open all day and great place to spend time even if you're not going to catch a production.
Coming here as a child and even now the collection is utterly astounding I can spend hours in the fossel and mineral room. Plus the architecture of the building is completely unique and breath taking.