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.
A small, independent cinema with a lot to offer the Brixton wanderer. As well as operating like you would expect a converted theatre-to-cinema to, Ritzy offers exclusive, niche film viewings, two bars and an upstairs live music venue. All of which provide an amazing platform to be 'culture-slapped' into shape.