but we've left these off so as not to overwhelm the map. Check out our separate roundup of free art in London. The National Gallery is one of scores of free to visit galleries and museums.

the London Transport Museum showcases everything that keeps London moving, including stylish original posters, early Underground maps, and more Routemasters than you can shake an Oyster card at.

A map showing all the best free London museums to explore during the Easter holidays should make it much easier to keep the kids entertained this week. While schools are shut, families can enjoy a ...