The location of this historic castle was inspired by a donkey.

A mysterious monument where a woman who records say never existed was burnt alive for being a witch.

A once extravagant mansion, now reduced to ruin.

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

The heads of two giant mythological water horses honor Scotland's horselord past.

This abandoned mausoleum from 1815 sits deep within the forest surrounding Callendar House.

This hill nestled in the Scottish lowlands was a ritual site for over 4,000 years.

A memorial commemorating the only Scottish police investigation into an extraterrestrial incident.

Scotland is filled with standing stones that date back hundreds or thousands of years. This is not one of them.

Historic fortifications form the boundary of Vatican City, but it’s not entirely surrounded by walls.

A relic of World War I that now exist as a piece of public art.

A much-loved sculpture depicting the hero of a 1956 anti-Soviet uprising.

Brass plaques embedded in pavement preserve the memories of those who lost their lives at the hands of Nazis during World War II.

A sculpture of the beloved author surrounded by characters from his fairy tales.

Dedicated to a synagogue that was destroyed after having survived World War II.

A sculpture of a beloved local figure, who tipped his top hat to everyone he passed on the streets of Bratislava.

An ode to a soldier who came to town, fell in love, then began making his own sparkling wine.

Looking strangely like Rome's Colosseum, this unfinished tower has dominated the skyline for over 100 years.

Built into the wall of this pub is a unique marker detailing the distance to Dublin.

Along the edge of this fountain are 365 smaller fountains that represent the days of the year.

A mechanical clock built in 1914, with a rotation of 12 historical figures on its face.

These relics of the city's past now exist as a prominent modern feature.

Designed as a reminder of one of the darkest moments in Austrian history.

In the middle of a Vienna square, Roman ruins dating back some 2,000 years are on display.