The Barbican is worth visiting for it's brutalist architecture alone. The concert programming is really diverse; it's home to the BBC Syphony Orchestra, but you'll also find bands like the Dirty Projectors and the National amongst the classical and contemporary composer line up. Plenty of art, dance and theatre too, however, the Conservatory is the real gem that's not to be missed.
Wonderful place for an indulgent afternoon tea. My favourite room is the millennial pink bathed Gallery room where the walls are covered in a sea of original David Shrigley art. The bathrooms feature beautifully designed individual egg-like pods and there's even a waiter whose sole focus is to serve you caviar.
A beautiful and spacious (outside of rush hour) way to get from Highbury, through east London to south of the river in minutes. The train snakes epically through Hoxton and Shoreditch and opens up the Jubilee Line via the beautiful Canada Water / Bermondsey stations.