One of the smallest bookstores on the planet.

Legacy of the earthquake that nearly wiped Lisbon off the face of the Earth.

This now abandoned restaurant provides some of the most amazing views of Lisboa.

An early Portuguese serial killer's head is alarmingly well preserved in a jar at the University of Lisbon.

A garden in Lisbon filled with giant porcelain creatures.

An ancient and majestic fortress that played an integral role in Portugal's road to independence.

A fortress off the West coast of Portugal that dates back to 1502.

The only microgravity tower in Europe can produce nine seconds of weightlessness.

One of the largest legal spray spots in Hamburg.

This wooden hotel is a temple to German sustainability and forest conservation.

A statue honors the local legend that the devil helped build St. Mary's church after being tricked into thinking it was going to be a wine bar.

Remnants of an exploded schooner and wrecked submarines form a breakwater.

A tiny island is connected to the mainland by a private railway that residents travel in their own personal wagons.

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

Inside a former cabaret, seven floors of erotic art.

Weird wax anatomical models reside here, as do other anatomical specimens.

The celebrated eyesore created by starry-eyed sweethearts.

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

A mud statue stands in the dark tunnels, seeming to hold up the weight of the city above.

The subterranean "lake" below the Paris opera house inspired the Phantom of the Opera's lair.

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

An overlooked marble is the only surviving in-place 18th century example of the measurement that changed how we define distance.

This Parisian fountain is a little bit fantasy and a little bit nightclub.

A subterranean shelter remains intact under a busy Paris railway station.