The Tower of London

The Tower on the north bank of the Thames is one of the most ancient buildings of London. It was founded in the 11th century by William the Conqueror. But each monarch left some kind of personal mark on it. For many centuries the Tower has been a fortress, a palace, a prison and royal treasury. It is now a museum of arms and armour and as one of the strongest fortresses in Britain, it has the Crown Jewels.