The mysterious megaliths have enchanted and intrigued visitors for thousands of years.

A red-brick beacon stands against the tempestuous Atlantic, on the windiest site in the United Kingdom.

A mysterious, weather-beaten bus lies on the coast of Harris, enticing the curious to investigate.

A once extravagant mansion, now reduced to ruin.

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

The sign announces the Scottish village's cosmic connections, as it's twinned with Glenelg, Mars.

The "Bridge Over the Atlantic" lets you cross the waterway in mere seconds.

The elaborate clockwork contraptions in this Scottish gallery create small worlds of whimsy and horror.

A subterranean shelter remains intact under a busy Paris railway station.

A Parisian cemetery where the elite and artistic are interred beneath an eccentric collection of tombs.

A surrealist timepiece by the artist of melting clocks.

The sign marks one of the endpoints to mainland Britain's longest overland travel route.

Britain’s highest medieval monastery is a remote ruin nestled at the head of a valley 1,240 feet above the sea.

These medieval monastery ruins are surprisingly overlooked by most tourists.

Explore Hull's historic Old Town by following the sea creatures scattered throughout its charmingly cobbled streets.

What looks like missing grout is actually an old pub's peephole.

The phone booths in this English town have distinctly milky hues.

A island reachable by a causeway at low tide is possibly one of the earliest Western European locations to be identified in text.

A fantastic castle rumored to be the birthplace of King Arthur.

The ruins of an 11th-century Norman castle with a rare, perfectly circular shape.

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

Instead of numerals, the unusual clock face spells out a memorial to a lost loved one.

Makers and sellers of the original and finest York Ghosts.

These planks were originally installed to hold the dead.