For centuries young Thai men used this Giant Swing as a slingshot to heaven.

A "miracle" that seems to produce more holy fistfights than holy revelations.

This "Jewish Sistine Chapel" was designed to reinvigorate Judaism's artistic legacy but was almost lost to misguided restoration.

A Bulgarian monument to Russia's role in World War II is constantly being painted in pop culture protest.

A fountain standing as a testament to a doomed alliance.

Ancient serpentine sacrifice holder that has stood the test of time.

This remarkably well-preserved Egyptian plinth is pretty well traveled for a giant piece of stone.

A marvel of Byzantine engineering under the streets of Istanbul.

A contemporary art installation housed within a Gothic cathedral.

Construction of Barcelona's iconic (but controversial) church is expected to be completed in 2026—a century after the death of its architect.

The oldest Roman lighthouse still in use.

The Cathedral of Salamanca has a number of unusual carvings but none so surprising as a modern astronaut.

Christ's blood preserved in a Belgian town.

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

A little sculpture with a large wardrobe.

These stark white cliffs were spat up by the sea and are slowly being retaken by it.

65 million-year-old chalk outcroppings mark the end of the Jurassic Coast.

Famously misunderstood wonder of the ancient world

Home to the most complete dodo remains known - one head, and one foot.

Numberless clock creates a meal of time for the dreaded, insectile Chronophage.

This century-old grotesque has a mysterious history and may not actually be a rabbit.

The National Railway Museum in York is the largest railway museum in the world, attracting almost 1 million visitors per year.

Mysteriously stacked storefront paths give this medieval British town an iconic style like none other.

Sometimes an island, sometimes a rocky outcropping connected to the world by a tiny suspension bridge.