Semi-precious Blue John stones have been mined in this cavern system for centuries.

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

There's a strange stone hoodoo towering atop a wooded hillside and no one is quite sure how it got there.

The whimsical twist of this spire was either caused by the Devil, an unexpected virgin, or lead.

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

This magnificent mural was created with over 30,000 colored bricks.

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

An enormous steel waterfall is a nod to the substance that shaped Britain's Steel City.

A tribute to the women who quietly kept the local steelworks alive during both world wars.

This police call box harkens back to an era of pre-radio communications, and has a rather unique feature.

The once-a-day siren is a reminder of the days before time was standardized.

This house was home to a succession of park keepers for more than 90 years, but in all that time, it never had a toilet.

This old Victorian bathhouse is fed by an ancient spring.

A gorge full of caverns where early humans lived alongside cave hyenas, giant mammoths and wooly rhinoceroses.

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

A unique 1980s designed church sits uncomfortably in its traditional Victorian churchyard.

A gardener saved a beloved clock face from destruction by building it into a wall outside his house.

This enormous spiral sculpture looks strangely out of place on the edge of a housing development.

This centuries-old canal known as the Cuckoo Dyke has a staircase of locks suitable for a giant.

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

The world's first successful water-powered cotton mill paved the way for the factories of the British Industrial Revolution.

This home of a taxidermy hoarder is among the grandest and most singular of historic English estates.

This tower was constructed to commemorate the man who helped bring true democracy to the United Kingdom.

This mysterious hilltop collection of Druid carvings isn't quite what it seems.