Reputedly based on the tomb of Jesus Christ, this crypt is the oldest surviving structure of any cathedral in England.

The former seat of power for the Balliol dynasty.

In the right conditions a wall of water up to five feet tall flows upstream against the current on the River Trent.

This old Victorian bathhouse is fed by an ancient spring.

This craggy boulder is fabled to be either a druidic relic or Satan's stumbling block.

One of the last remnants of the Bessemer process that revolutionized steel production during the industrial age.

This peaceful oasis appears dreamy, but it's also the site of a nightmarish legend.

Also known as Rye Castle, this 13th-century fortification later became a prison and held one of Rye's most famous criminals.

This suburban British town holds secrets that would have made the druids proud.

The largest preserved walking dragline excavator in Western Europe.

At the height of alum production at this factory, human urine was a valued commodity.

This rare aquatic phenomenon is one of the more accessible tidal bores in Morecambe Bay.

This short white tower is all that's left of Scotland's first permanently manned lighthouse.

Home to one of the tallest church spires in Europe, this historic church once played host to King Henry VIII and Anne Boleyn.

This ancient fort overlooks the site of a disastrous retreat from the English Civil War.

No one is sure what to do with this WWII shipwreck that sits at the bottom of the Thames, still loaded with tons of explosives.

British Empire's last territorial expansion, claimed by four countries.

The ruins of a Roman fort lie in the shadows of an imposing medieval castle.

The city of Manchester quietly unveiled this tribute to a 19th-century massacre.

These abandoned coal mine towers near Sherwood Forest might soon boast the U.K.’s longest zip-line.

A quirky "castle" formerly belonging to a famous British inventor.

This star-shaped artillery fort protected the mouth of the Thames from the 16th century to the Second World War.

Derelict chemical plant on the North Sea is a beautiful industrial ruin.

The world's first purpose-built motor racetrack was destroyed by the outbreak of two world wars.