France's national museum of scientific and industrial instruments.

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

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

Notorious artist squat renovated into legal studios.

"In the Dark" Restaurant in Paris offers dinner in complete darkness.

The celebrated eyesore created by starry-eyed sweethearts.

The largest free-standing aquarium in the world resides in a hotel lobby in Berlin.

Seat of the Duke and Duchess of Devonshire for centuries.

The famous winding walk at Chartres is surrounded in mystery and myth.

Inside a former cabaret, seven floors of erotic art.

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

Got apples?

The curious underground history of keeping Paris clean.

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