One of things I love about the London Underground is its visual identity which is all over the place. It's so quirky because the lines all developed in different ways with different origins. The Victoria Line was built after the system was nationalised. Anyway, it was decided that all the stations should have their own tiled motifs set in the bench recesses. Here are a few of them.
Blackhorse Road tiles
Seven Sisters tiles
Highbury & Islington tiles
Warren Street tiles