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?

A flash in the pan

This expression originates with the misfire of a flintlock or similar gun. The powder in the pan is supposed to ignite the main charge in the barrel. Sometimes only the powder in the pan flashed without firing the main charge.