Psychoanalyst Carl Jung reported a paranormal experience after visiting this mosaic-lined Roman baptistry.

Numerous stone coffins from different centuries, lined up in a sixth century basilica.

A medieval, mosaic-lined baptistry built by a heretical Christian sect.

Those who own or stay at this 500-year-old, allegedly cursed house often meet terrible fates.

Go inside to really appreciate this 500-year-old technological masterpiece.

Two stone columns flank the grand Venice square, but there were supposed to be three.

This statue of the great Argentinian car driver is located near a famous curve of the Monaco Grand Prix.

Sky ships, planes, and portraits left as unique tokens of hope and thankfulness.

A medieval church with largest and oldest collection of Renaissance frescoes in France.

This religious complex carved into a cliff is steeped in legends of miraculous stags and the Holy Grail.

These magnificent city walls rise from the barren sun-baked Spanish plains like something straight out of a fairytale.

The Spanish writer devoted hours to writing 'Don Quixote' in this house.

This tranquil urban park has a violent history.

One of the largest ossuaries in Spain is packed from floor to ceiling with bones.

This dazzling Art Nouveau mansion is now home to the Modern Art Gallery Subotica.

Religious perseverance and cultural coexistence manifest in an architectural gem that multiple wars couldn't topple.

This Hungarian castle was built out of cardboard and wood until it proved so popular that it got upgraded to stone.

A Trabant car, a kangaroo statue, and a plethora of plants take over this abandoned-factory-turned-bar.

The metal leaves on this tree are engraved with the names of Holocaust victims.

A plaque bearing the names of those who dedicated themselves to protecting Budapest's Jewish population during World War II.

Also known as Uncle Karl, the beloved bronze copper keeps a watchful eye on St. Stephen’s Basilica while people rub his lucky belly.

A statue in Budapest's Liberty Square honors the former U.S. president's efforts to end the Cold War.

A trail of iron footwear stands as a monument to the thousands executed along this riverbank during WWII.

A triumphant marble and bronze fountain depicting a 15th-century Hungarian king and his hunting party.