An ancient impact crater on the outskirts of Pretoria.

Two Chinese dragons guard the caves of this medieval temple in Iran.

One of the tallest statues in the world, and the tallest statue of a goddess in Japan.

This enigmatic artifact remained buried in a churchyard for years.

Along the most northwestern point in Africa is an ancient cave surrounded by legends.

A statue of the legendary Celtic warrior queen who fought the Roman invaders stands in one of the cities she once destroyed.

A clerical error gave rise to this imaginary micronation in the southwestern corner of Estonia.

The library houses an incredible collection of some of the world's most impressive books and manuscripts.

This unusual monument shows a naked Simón Bolívar stripped of clothing, medals, and swords.

The first (but not only) upside-down house in Germany.

The largest of Denmark's seven mysterious round churches stands on an island in the Baltic Sea.

The last resting place of the famous Native American princess is marked by a haunting monument.

Legend says this rock was once a chopping block for public executions.

One of the largest busts in the world celebrates the German city's erstwhile namesake.

This charming pup is meant to celebrate the youth and stubbornness of the city's students.

Hanging within this medieval church are the bones of a beast allegedly slain by a fourth-century saint.

The roof of this ancient mausoleum is made from a single Istrian stone weighing a massive 230 tons.

A familiar otherworldly creature guards this 12th-century Scottish abbey.

Seventeen members of the local royal family are interred in this Baroque church in northern Germany.

This tiny traditional smokehouse is the only one left in this historic fishing port.

In Faroese legend, this sinister horse-shaped beast lures unsuspecting passersby only to drown them in the lake.

A fantastical 13th-century fortification sandwiched by a modern hotel in central Brussels.

This macabre monument atop an ancient well gives a nod to a brutal episode in Scottish clan history.

A catapult rock from Gotland’s 13th-century civil war is still lodged in Scandinavia's best-preserved medieval city wall.