Quite expensive to get in, but you can get a two-f...

Quite expensive to get in, but you can get a two-for-one voucher from S.E.Trains.
Fantastic history lesson - probably one of the best in London. Plenty of gory and exciting stories for children and adults. The crown jewels are there, the ravens, soldiers, beef eaters...I've only given it 4 stars because of the price of entry.