Down a cobblestone alleyway is a museum dedicated to Romanticism, with a secret garden.

This museum houses an imposing skeleton army comprised of creatures great and small.

Egyptian Revival movie palace abandoned for decades and restored in 2013.

19th century pendulum and a clock restored by a rogue group of guerilla artists.

A mechanized clock where a man fights off a dragon, crab, and rooster.

High atop the Eiffel Tower is a small apartment built exclusively to entertain the science elite and make the rest of Paris jealous.

This charming cobbled backstreet is the most Instagramable street in Paris, much to the residents' annoyance.

The very center of Paris is surrounded by a bevy of strange good luck rituals.

A museum of carnival attractions where you are invited to ride the rides.

Paris' linguistic guide to the international language of, yes, love.

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

This massive library holds what was once the largest book collection in the world.

Abandoned railway line circling the city of Paris.

Notorious artist squat renovated into legal studios.

Created as a punny statement about genetic engineering this monstrous hybrid statue has become a beloved icon.

The red letters in the literary pavement leading to the library form a mysterious code.

A thousand year old oak tree survives in Liverpool.

The Liverpool street made famous by the Beatles is real.

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

A magnificent Victorian garden that brings the charm and style of old-time aristocracy to the 21st century public.

This 15th-century fortification was built to defend bunnies.

This captivating Bronze Age timber circle spent centuries concealed by the tides.

The wreckage of an old coastal trading vessel is only visible at low tide.

A hidden tunnel leads to an abandoned slate quarry that's now a secret swimming spot guarded by cliffs.