The UK's largest private house was the subject of a long-lasting political dispute.

This jewel of an engine is one of Northern England's finest surviving legacies of the Industrial Revolution, even catching the eye of Henry Ford.

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

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

The former home of a railway legend and the site of a gigantic labyrinth.

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

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

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

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

The tallest freestanding structure in the United Kingdom.

6000-year-old site covered in more than 50 megaliths.

A brick foundation and piles of listing building materials are all that remains of this World War II POW camp.

A preserved 18th century steel factory.

Seat of the Duke and Duchess of Devonshire for centuries.

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 oddly placed 15th-century church is one of only six bridge chapels left in England.

This enormous secondhand bookstore inside a Victorian train station sparked the "Keep Calm and Carry On" craze.