This fortress dates back to the 6th century and is also the site of a controversial abandoned restoration project.

Displaced highlanders would take shelter from the wet Scottish climate under the large walled bridge at Glasgow Central Station.

This stately estate house features a tower covered in a bright, modern mural.

An unusually shaped lighthouse with origins rooted in heartbreak.

This seaside Italian village doesn't just look Escher-esque, it actually inspired the mind-bending artist.

These subterranean models show Mexico City's central square during three different eras.

An artistic tribute to the famous singer, just around the corner from where he was born.

"We gonna rock down to Electric Avenue, and then we'll take it higher..."

Explore a traditional Albanian dwelling that pays tribute to the region's rich history.

You'll find just about anything in this funky Tbilisi flea market.

A small but hugely whimsical theater where marionettes play out the "The Battle of Stalingrad."

A whimsical European-style chateau that calls the coast of Chile home.

England's most notorious suicide spot.

How a lunch counter in Chile became a shrine to the 42nd president of the United States

An abandoned 146-acre summer resort slowly being reclaimed by nature.

A lighthouse on a diminutive island was one of the first of its kind to guide seamen home.

A famed artist's inspiring work of peace and tolerance.

Macabre astrological automaton clock dating to the late 1400s.

Qatar's oldest market can trace its origins back more than a century.

Would you dare to dangle from a great height in a wooden basket?

This sweet-toothed bear searching for snacks has been a symbol of Madrid for decades.

For decades, Puerta del Sol has been illuminated by a giant, guitar-wielding bottle of sherry.

A pair of gigantic baby heads greet passengers at Atocha Station.

Look closely and you’ll notice that the color changes a third of the way up the tower.