Catacombs turned marketplace.

This unique bridge curls up like a caterpillar to let boats pass and then unfurls again to span a small canal.

The shop where the girl who inspired the beloved character once bought sweets is now a book-themed commercial curiosity.

A man throwing a giant severed hand towers over Antwerp’s main square.

The legendary giant's severed hand sits on Antwerp's popular shopping street.

The city’s oldest gateway to the galaxy lies at the entrance to the Royal Botanical Gardens.

Famed for its pie, this eatery has a hidden tunnel that allowed Catholics to secretly walk to church during the Reformation.

This nondescript building was the birthplace of Morris cars.

These giant grain silo portraits capture elements of rural life in Australia.

This once-controversial and slightly confusing statue of Achilles was built out of captured cannons.

The bronze uniforms commemorate the vital role of women during World War II.

Climb a steep hill in 90 seconds on the second-oldest urban subway in the world.

Tintin's creator is celebrated in an immersive museum that's an astounding work of modern art.

This ancient Egyptian obelisk still bears the wounds of World War I.

This slice of 1960s Danish modernism does not conform to the Oxford college stereotypes.

A plaque is all that remains of a lost Oxford transport hub.

The bell that once tolled atop a lost Edinburgh gate now hangs for all to see.

The ritual has been performed uninterrupted for nearly 700 years.

The pioneer of psychoanalysis spent the final year of his life here, still seeing patients on that famous couch.

Created by one of England's most prolific labyrinth designers, inspired by Bath city history.

Once one of the largest rooms full of books in the world, this bookstore basement is still a treat for bibliophiles.

Climb to the top of its spiral spire for spectacular views of Copenhagen.

The remnants of this unusual bridge await an uncertain fate.

This emotive sculpture was originally created for the 1878 World's Fair.