The only panel of the Great Tapestry of Scotland that has been replaced, after the original was stolen.

A pile of earth left over from a water supply project was converted into an anti-aircraft installation during World War II.

If you look closely at the oldest bridge in Paris, you might notice hundreds of ugly faces leering from its sides.

For more than a century, revolutionary graffiti has marked the wall of a Parisian church.

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

A lone cannonball remains lodged in the walls of the Hotel de Sens as a sober reminder of a revolution.

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

Notorious artist squat renovated into legal studios.

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

This former “ante-chamber to the guillotine” has been refurbished to illustrate the brutal history of French justice.

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

This demon atop the Notre-Dame de Paris looks utterly bored.

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

Walk upon the mementos of the dead in this Parisian courtyard paved with medieval tombstones.

A museum of magic with a Sadist past.

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

The oldest and smallest cemetery in Paris is only open to the public twice a year.

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

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

Follow the original medieval paths that wind through this intriguing section of the city.

The final resting place of England's most notorious bandit.

A stained-glass window from the 15th century offers a vision of the end of the world.

Cycle the solar system—from the sun to Pluto—right here on earth.

When the plague struck York, this stone was used to leave supplies for the sick.