<human>:  What are some of the best art galleries and museums in London?
<bot>: 
1. The British Museum, established in 1753, is one of the best and most visited museums in London.
2. The National Gallery is home to a stunning collection of classic European art, spanning 1260 to 1900.
3. Tate Modern is the most popular modern art gallery in the city, with a wealth of international artwork on display.
4. The Victoria and Albert Museum is one of the world's leading museums of decorative and applied art, housing a vast collection of art and objects from around the world.
5. Saatchi Gallery is an acclaimed modern art space which showcases contemporary artists and their works.
6. The National Portrait Gallery boasts a rich collection of paintings, photographs and sculptures of iconic British figures, from kings and queens to famous actors and musicians.