The oldest of the three remaining bridges in England with buildings on top of them.

The world's first military tank was designed in this English city amid the stalemate of WWI trench warfare.

Huge concrete structures designed as an early warning system for Britain to detect enemy aircraft.

Henry VIII's forgotten castle was built by the gunpowder-obsessed king to be defended solely by cannons.

An ancient water supply dating back almost 500 years can still be found standing in East Sussex.

A castle in the Scottish Highlands has been continuously inhabited since the 1300s.

Fifty years of contamination in Scotland's waters.

A sea cave with a waterfall and Viking past

Where the sleeping monsters of Scotland's oil industry are left to rust.

Eighty million natural history specimens call this gargantuan museum home.

Locals call it the "Give Peas a Chance" bridge because of its distinct graffiti.

This hilarious English intersection is an automotive whirlpool.

A miniature village mimics the surrounding buildings so well it includes itself.

Puzzles within puzzles hide a golden treasure in this hedge maze.

Human-made caves excavated to hide a secret society of wealthy pagans.

Ancient Egyptian wigs, South American feather headdresses, a bounty of anthropological artifacts in Oxford.

Home to the most complete dodo remains known - one head, and one foot.

Used as an example in one of the first dictionary entries for "museum" in 1706.

An extraordinary collection of scientific instruments - and Einstein's chalkboard - inside the world's oldest purpose built museum building.

An Oxford museum where visitors can have tea with the Mad Hatter and climb through the wardrobe to a fantasy land.