Ant sculptures march up the side of what used to be an iconic spot in punk rock lore.

Huge masonic hall in Philadelphia with lavishly themed rooms.

An unusual manor of stunning beauty, born out of a crippling disease.

This controversial Irish show cave is home to a massive formation known as the Great Stalactite.

A Bronze age settlement on the Greek island of Santorini might have been the inspiration for Plato's Atlantis.

This 22-floor tower's Skydeck offers panoramic views of Amsterdam.

A little sculpture with a large wardrobe.

Cozy basement bar sports an inventory of over 2,000 beers.

Climb inside an iron crystal magnified 165 billion times its normal size.

This saucy statue once caused outrage among locals.

Go surfing on this urban wave, "hacked" by local surfers.

The palace window through which Protestant nobles flung two Catholic regents, thus sparking the Thirty Years' War.

This pair of unsuspecting buildings are in fact the very first modern skyscrapers in Europe.

The 19th-century home of Count and Countess von Hallwyl is now a museum.

It is said that each of the white stones in the red facade of this medieval house represents the head of a murdered Swedish noble.

It houses the remains of a 17th-century version of the Titanic.

Stockholm's decidedly unique public transit system has doubled as the world's longest art gallery for decades.

Construction of Barcelona’s iconic (but controversial) church was finally completed in 2026—a century after the death of its architect.

A set of 13th and 14th century standardized bread measures.

Located in a heritage building, this Mickey D's is missing its Golden Arches.

A museum that chronicles the history of the Nuremberg Trials for Nazi war criminals in the building where the trials were once held.

A castle from the Holy Roman Empire that hosts traveling youth... in its stables.

A terrace reminiscent of Rome's Spanish Steps is tucked away in a little park in Washington, D.C.

The only Leonardo Da Vinci painting in the Western Hemisphere.