An abandoned canal route lies hidden under the streets of Manchester.

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

The last working windmill in the U.K. that has eight sails.

A repurposed railway tunnel with otherworldly acoustic characteristics.

The whimsical steel spider lurking in the shadows of this suspension bridge shows that engineers can have a sense of humor.

One of the last doorless, continuously moving elevators still in use in the U.K.

Amidst towering office buildings, a local pub lives inside Sheffield’s oldest surviving domestic building.

This English medieval castle is where King John died of dysentery.

A headstone notes where the most famous of Robin Hood's legendary Merry Men is reportedly buried.

A magnificent winding road through a steep valley, with deep natural caverns at the bottom

Some of England's last cave dwellers lived and worked within this huge cave.

This restored 17th century "conduit house," often mistaken for a watchtower, actually supplied water to nearby Bolsover Castle.

A secret meeting in this small cottage changed the course of British history.

When methane gas started seeping up from the ground, they picked up and moved the entire town.

A mysterious medieval monument said to mark the final resting place of Robin Hood’s henchman.

The ancestral home of beloved English poet Lord Byron has a bizarre history.

Seat of the Duke and Duchess of Devonshire for centuries.

This landmark Victorian folly rewards visitors with spectacular views over the Peak District.

This beautiful "lagoon" is actually a toxic soup filled with cars, carcasses, and trash. When warnings couldn't stop people from going for a dip, the town dyed it black.

Lord Byron's embalmed body lies within this medieval church.

On a site with a long military history, a 1980s shelter.

This haunting stone chasm is a hotbed of mossy rock and English legend.

A curious urban windmill once owned by a renowned British mathematical physicist.

The Birthplace of the Englishman who founded the A.C. Milan football club.