Royal Armouries

Explore: Power House

The powerhouse exhibition at the White Tower tells the stories of the major organisations of state that took care of royal business behind the mighty Tower walls. Discover more about the history of the Tower as England’s “Powerhouse” here.

Learn more about the great institutions including the Ordnance Office, Ordnance Survey, the Royal Mint, Record Office, the Jewel House, Menagerie and Royal Observatory. Discover the Tower of London’s other functions, ranging from royal residence to state prison.

Tower through Time

Institutions of the Tower

Dragon

Did you know?

No rust for the wicked

Wrought iron does not rust as quickly as cast iron. At Fort Nelson the ‘Boxted Bombard’ – a large medieval cannon made of wrought iron – is still in good condition despite being left outdoors and unprotected for hundreds of years.