Whitechapel Gallery is conveniently located near Aldgate East tube station and focuses on modern/avantgarde art, with a definite feminist vibe to the place. There are several temporary exhibitions at the same time, spread over three floors and ten rooms (galleries). Most of the exhibitions are free, but there's always a "premium", rather extensive exhibition on, the current one being on abstract female painters from the 1940s to the 70s. The price (UKP 16) seemed reasonable, and it featured a number of high profile artists, including Lee Krasner, wife of Jackson Pollock. Definitely recommended if you're interested in abstract painting. The floors are intelligently laid out, and there's a small but interesting shop on the ground floor. The free exhibitions were intriguing (and political), too, so I spent an interesting 2 hours at Whitechapel Gallery. When you're done with London's big art museums, why not check out this place? Photography was allowed in all the exhibitions, which was a pleasant surprise.