London Transport Museum
Housed in the old flower market at the southeast corner of Covent Garden, this intriguing transport museum is filled with highly impressive trains, posters, and photograph collections. As you watch the crowds drive a Tube train simulation and gawk at the Victorian steam locomotives and horse-drawn trams (and the piles of detritus that remained behind), it's unclear who's enjoying it more: children or adults. Best of all, the kid-friendly museum (under 18s admitted free, and there's a play area) has a multilevel approach to education, including clear information for the youngest visitors and transit aficionados alike. Food and drink are available at the Upper Deck Canteen café, and the shop has good options for gifts. Tickets are valid for unlimited entry for 12 months.