The beautiful non-repeating pattern honors the Oxford professor who discovered it.

These ruins witnessed the final gathering of the failed Jacobite Rebellion.

From here, the loch appears to take the shape of mainland Scotland.

This macabre monument atop an ancient well gives a nod to a brutal episode in Scottish clan history.

A 2000-year-old Roman amphitheater lies just below Guildhall Yard.

What might be the oldest living tree in London has survived fires, bombings, and estate agents.

A rampant horde of demons smirk and snarl at visitors to this church, home to a rare complete set of medieval-era stained glass windows.

A cavernous three-story, 43,800-square-foot basement that was forgotten about for 60 years.

A cemetery in Barcelona's Poblenou district is home to this touching funerary statue, which depicts death in the form of a winged skeleton.

A medieval replica of King Arthur's legendary table, the Round Table hanging in Winchester Castle was decorated by Henry VIII.

Inspired by the colossal pyramids at Giza, this 15-foot structure is believed to be the first funerary pyramid in Great Britain.

A secluded green oasis amidst the towering skyscrapers, bears an unusual moniker that reflects one of the city's oldest guilds.

A 2,000-ton rock resting in a state of a delicate balance.

Believed to be the longest railway bench in the world.

The Grand Mall in Varna hosts one of the biggest collections of Soviet-era paraphernalia in Bulgaria.

This massive concrete sculpture is said to be the heaviest communist monument on Earth.

Crossing a suspension bridge above a forest is the only way to reach this 12th-century monastery.

An ancient woodland that inspired a young J.R.R. Tolkien.

Two women with a flair for both adventure and artful clutter created this singular round home.

A ruined castle has more than its fair share of legends and ghost stories.

A historic holy well hidden near a charming English park.

One could not be blamed for literally walking all over this supposed landmark.

Abandoned for over 20 years, this art deco seaside swimming pool is a magnificent waste.

This rare aquatic phenomenon is one of the more accessible tidal bores in Morecambe Bay.