Its the place where the Crown Jewels are held. Crown Jewels were the personal property of the sovereign. It was fairly common practice for the King or Queen to pawn them or use them as security for loans in time of war. Most were kept at the Tower. Sometime after 1660 the Tower became the permanent home of the Crown Jewels and put on public display. The Tower has been a palace, prison, treasury, arsenal and even a zoo!

