The Stonehenge of Wales is one of the grandest neolithic dolmens still in existence.

A meandering boardwalk across the bogland leads to a "stairway to heaven" with sublime views.

The largest oak in England is said to have been the hideout of Robin Hood and his Merry Men.

The ghosts of Britain's telecommunication past sit rusting away in a small village in England.

This secluded walkway overlooks a magnificently wild London green space.

Legend says this cave housed a 16th-century cannibal and his family of 48.

This ethereal, rainforest-like gorge is home to waterfalls, quaint bridges, and fairy folk.

The sculpture is made of more than 100,000 knives collected to raise awareness about violence.

A 4,500-year-old forest is slowly being revealed from beneath the sands of a Welsh beach.

This observatory within Europe's first dark sky park offers stunning views of the night sky.

Possibly the oldest living thing in Europe, more likely a pagan survivor.

The highest peak in Wales is said to be the final resting place of a giant killed by King Arthur.

Fantastically decorated underground chambers built in the 1760s.

Lovers proclaim their unbreakable bond by leaving their names on locks fastened onto the Shoreditch fence in East London.

The remains of a grand castle that may have inspired Bram Stoker's Dracula.

Britain's only herd of free-ranging reindeer.

These stark white cliffs were spat up by the sea and are slowly being retaken by it.

Stonehenge has nothing on Castlerigg’s views.

Hidden in a Scotland museum is a copse of extinct tree stumps.

This modern labyrinth lies in the shadow of a ruined medieval castle.

One of Scotland's most important modern structures, it just made the '100 Most Endangered Sites' list.

Monty Python fans will recognize this abandoned mine as the Cave of the Killer Rabbit of Caerbannog.

The stately remains of Llywelyn the Great's mighty fortress.

At the United Kingdom's only residential library you can sleep among the books.