This tiny little cave was said to have been a refuge for a saint with a glowing arm.

An American ghost town hides along a side street in Scotland's capital.

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

The remains of an ancient Roman teenager are memorialized at the base of a modern London landmark.

Grab a cuppa at England's first and only domestic tea plantation.

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

The watery entrance for condemned prisoners heading to the Tower of London is still visible along the Thames.

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

High Victorian fantasy created a fairytale castle out of a ruined fortress in Wales.

Climb this overlooked gem's spiral staircase and you'll be rewarded with spectacular views of Glasgow.

This elaborate Byzantine-style building was designed for a not-so-pretty purpose.

The last occupied troglodyte dwellings in England weren't abandoned until the 1960s.

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

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

Eyam took steps to quarantine themselves and keep the plague from spreading.

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

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

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

Colin Stokes "got a bit carried away" and built a castle that looks like something out of Tolkien.

A Roman spa buried deep beneath the City of London.

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

This secluded walkway overlooks a magnificently wild London green space.

Legend says a witch conjured the world's third largest whirlpool to protect Scotland from a nasty pirate.

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