A student driver's nightmare.

This 11th century tower is said to be the oldest building in Oxford.

Eliza and Mary Chulkhurst were the first famous conjoined twins in England, but it's not clear when they were born.

A particularly creepy abandoned hospital that sparks interest for lovers of the supernatural.

The celebrated eyesore created by starry-eyed sweethearts.

The location of this small park was once the site of an infamous public morgue.

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

This modest marker near Notre Dame identifies the very center of Paris.

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

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

Twelve grave-faced marble angels guard the emperor's tomb at Les Invalides.

A scandalous Art Nouveau collaboration that set Paris all atwitter at the turn of the 20th century.

Abandoned railway line circling the city of Paris.

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

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

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

Architect Le Corbusier built his friend a cubist house to match his impressive collection of cubist art.

A series of abstract, silly sculptures represent the works of a great modern classical composer.

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

A museum on the history of Paris, including a set of Napoleon's toiletries, Proust's room, and relics of the Revolution.

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

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.

This Parisian café sticks almost exclusively to an ethos of reuse.

The first green space constructed on an elevated viaduct.