Remains of Roman amphitheater hidden in a sleepy quarter of Paris.

This life-size replica of the Statue of Liberty's flame is also a tribute to Princess Diana by default.

The tradition of open-air secondhand and antiquarian bookselling in Paris dates back to the Renaissance.

The water-powered carriages are long gone, but for over a century this funicular railway has been the fastest route to the highest point in Paris.

The ruins of a Duke's bucolic dream, where camels once roamed alongside "Dutch" windmills and faux-Italian vineyards.

A Parisian cemetery where the elite and artistic are interred beneath an eccentric collection of tombs.

This statue was given to France by the United States to commemorate the centennial of the French Revolution.

Site of a classic 19th-century physics experiment to prove the earth is rotating.

An "inside out" building in the historical center of Paris, featuring Europe’s largest modern art museum.

A horde of stray cats rule in this secluded Parisian cemetery under a bridge.

Notorious artist squat renovated into legal studios.

This iconic Parisian bookstore doubles as the "Tumbleweed Hotel" for traveling writers.

France's most famous cemetery, with some of its most curious tombs.

The vast, legendary catacombs hold secrets much stranger than stacked bones.

The video game-themed street art first popped up in the French city.

A plaque claims this artwork outside a children's hospital was used in the 1998 Quidditch World Cup.

Constructed from recycled wrought iron railroad tracks, it's been described as the most beautiful seaside pier in England.

The Bristol Camera Obscura housed in an ancient windmill.

It houses a menagerie of wondrous taxidermy specimens from around the world, including the remains of a famous gorilla.

After protestors toppled a statue of a 17th-century slave trader, the pedestal where it once stood remains unoccupied.

This Grade II Listed Building with an Art Nouveau façade once contained a unique print shop.

17th-century merchants in Bristol nailed their deals by placing money on these pedestals.

Famously misunderstood wonder of the ancient world

This enormous "cloth of the conquest" depicts the Norman invasion of England in mind-blowing detail.