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

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

The granddaddy of English geoglyphs dates back to the late Bronze Age.

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

During this Shetland Islands celebration, hundreds of torch-carrying "guizers" lead a procession to burn a viking longboat.

Ship-sized kinetic sculptural fantasy.

An English artist has turned an unassuming ex-council house into a time-lost house of mystery.

A giant pineapple, a symbol of hospitality, and an amazing vacation rental option.

In Twickenham sits a small whitewashed castle that inspired Mary Shelley's 'Frankenstein.'

This romantic, decaying 13th-century ruin on the edge of Sherwood Forest is reputedly one of England's most haunted places.

A statue in the heart of Edinburgh honors a bear that served in the Polish military during World War II.

St. Mary's Asylum was isolated and abandoned before being converted into a Bed and Breakfast.

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

This Gothic Revival castle used as a shooting location for "The Secret Garden" and other films.

Fantastically decorated underground chambers built in the 1760s.

Harry Potter once visited this massive limestone cliff, which was carved by an ancient glacial river.

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

Britain's only herd of free-ranging reindeer.

Long abandoned underground complex to keep royals safe from a nuclear war that never came.

Stonehenge has nothing on Castlerigg’s views.

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

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.

A secret garden in a picturesque Edinburgh village has inspired artists for centuries.