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

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

A mysterious ruin shrouded in more folklore than fact.

A rare permanent monument to the Scottish Travellers.

These ruins are a hidden gem, complete with fantastic views over the cliff edge.

Fifty years of contamination in Scotland's waters.

These mysterious mazes carved on the rock may be up to 4,000 years old.

The remnants of a strange stilted building on rails can still be seen at low tide.

“It has nae lugs!”

The 5,000-year-old megalith is believed to be Scotland's tallest standing stone.

An avant-garde artist is survived by his seaside garden.

A steep and winding road in the Yorkshire Dales passes by these deep natural potholes.

All that remains of the fishing-vessel-turned-warship is its weathered hull.

This amazing trail among the many waterfalls around Ingleton has been enchanting visitors since 1885.

These bleak 800-year-old ruins were once the royal residence of choice for hunting in Sherwood Forest.

Cornish legend says these ancient circles were people turned to stone for playing hurling on a Sunday.

The sculptural remains of the last home of a legendary Dada artist.

An engraved stone in a village church claims to be the grave of a minuscule folk legend.

England's "pier at the end of the universe" unites astronomy and contemporary architecture.

An abandoned quarrying village turned commune is now a hub for learning the Welsh language.

A fully functional, 200-year-old remnant of the time when Brixton was mostly fields.

A trio of giant megalithic stones in the middle of a golf course.

This Gothic castle-like portal is a testament to the amazing craftsmanship of the navvies who built the railway tunnel.

Britain's oldest and biggest hole in the ground.