Christ's blood preserved in a Belgian town.

A fantastical 13th-century fortification sandwiched by a modern hotel in central Brussels.

A little sculpture with a large wardrobe.

Cozy basement bar sports an inventory of over 2,000 beers.

Climb inside an iron crystal magnified 165 billion times its normal size.

A rare example of World War I trenches from the British front.

A moving memorial to the fallen and missing from WWI trenches.

In the shadow of a former battleground, the resting place for nearly 2,000 soldiers who died in World War I.

This memorial museum chronicles the apocalyptic destruction of the First World War.

A floating cat sanctuary on an Amsterdam canal.

This giant wire frame man sculpture is crouched in contemplation.

An antique curios dealer and hybrid taxidermist.

The celebrated eyesore created by starry-eyed sweethearts.

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

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

In this Parisian garden's grotesque former life as a zoo it fed exotic animals to the bourgeois and put humans on exhibit.

How did a French journalist’s grave become the sexiest statue in the cemetery?

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

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

Golden and naked, the figure that was once the highest point in New York is all that remains of the second Madison Square Garden.

The sounds of the world's largest fully functioning pipe organ dazzle shoppers at a Philadelphia Macy's.

South Philadelphia is home to Keith Haring's only surviving in situ collaborative public mural.

This elaborate towering structure was once famed for its revolutionary height.