This stunning iron gate designed by Modernist architect Antoni Gaudí is filled with mythic symbolism.

Access to this hidden site of a 14th-century mass suicide is prohibited, unless it is to pray for the dead.

It is said that coins washed in the waters here will miraculously multiply.

This strange sculpture depicts a giant nightmare hare crushing a man to death beneath its colossal bulk.

If you ever wanted to touch a medieval mercenary’s three testicles, look no further.

An enormous pair of straw sandals woven in the traditional way—to keep demons at bay.

This enormous monument is one of the most iconic structures in Tokyo, rudely nicknamed "The Golden Turd."

Take a few seconds to look at this abandoned, art-filled station as you pass by on the subway to Ueno.

A brutalist gem towering over the heart of Milan.

Explore this medieval cathedral by trying to spot all the malevolent monsters hiding in its beautifully colored windows.

In the ruins of Glastonbury Abbey lies the alleged resting place of the legendary king.

This hill and tower are steeped in legend, from King Arthur to the Holy Grail.

This astronomical clock is the second oldest in England.

The oldest residential street in Europe also features an optical illusion.

One of the most well-preserved castles in Italy also contains a rare medieval example of a port fortification.

See no evil, hear no evil, speak no evil.

Home to the world's oldest wooden building.

A measuring mishap led to these artificial stone ladies losing their stomachs.

Approximately 300 million years ago, a massive coral reef existed in what is now the largest limestone cave in Japan.

Was this cave created by Hercules's wrath, the devil, or volcanic activity?

An incredible mosaic-lined monument said to have held the remains of an ancient Roman empress.

This memorial to World War II's fallen airmen shows us the movements of the stars that once guided them.

There has been an astronomical clock on this spot since the 14th century.

A neo-Gothic mansion now houses a wunderkammer of analog tech that hits on all the senses.