After years of being casually peed on by humans, this tree is peeing back.

The world's only silo that was topped by two revolving restaurants has unfortunately been demolished.

This German fountain of a legendary apple wine-loving drink thief will spit on you.

Fantastic views and thousands of love locks.

Carved fountains poignantly placed in parks and in front of special monuments.

This unique exhibit "Dialogue in the Dark" reverses roles as the visionless become guides and the sighted become ‘blind.’

A rare chance to ride one of the few continuous elevators still in operation.

From Nazi chemicals to the CIA, this architectural marvel has played a fascinating role in German history.

The entrance to this Frankfurt subway station looks like an old tram car crashed into the concrete sidewalk.

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

A Parisian cemetery where the elite and artistic are interred beneath an eccentric collection of tombs.

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

A giant silver apple a day keeps the perils of capitalism away.

A surrealist timepiece by the artist of melting clocks.

The narrowest street in Paris.

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

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

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