This unattributed sculpture in Amsterdam is hiding in plain sight.

Seven mini rowhouses fill the gap between 54 and 70 Westerstraat.

Cat art as far as the eye can see.

A floating cat sanctuary on an Amsterdam canal.

An Amsterdam street lined with antique shops each one dedicated to a different obscure collection.

This king penguin is a knighted brigadier of the Norwegian Army.

A peculiar mansion built by the troubled heir to the Winchester Rifle Company fortune.

The tomb of one of Scotland's bloody historic villains is a magnet for bumbling desecrators.

Paranormal experiences in this hotel's room 217 led Stephen King to write "The Shining."

This family mausoleum is steeped in symbolism and looks more like a fantasy location than a grave.

The water here is so clear you can see the mysteriously sunken ship from the surface.

Once part of an ancient international harbor, it's now an all-you-can-eat shrimp buffet for flamingos and other water birds.

A whimsical and twisted animatronic monster tour beneath the streets of Berlin.

One of the world's heaviest musical instruments towers within a popular urban park.

These brass bunnies honor the rabbits that dominated the no-man's-land around the Berlin Wall.

The final resting place of many of Germany's most famous communists.

Gardens representing parts of Asia, Europe, and the Mid East are tucked away among the Soviet-style buildings in East Berlin.

This Berlin island is home to a flock of free-roaming peacocks, as well as a historic ivory folly.

An abandoned NSA listening post on Berlin's "Devil's Mountain."

Started as a kitchen garden, now the second largest botanical garden in the world.

Plains of ash and pair of semi-active volcanoes contribute to the otherworldly beauty of this little-known Vanuatu island.

This South Pacific volcano has been blowing its stack for over 800 years and is said to be home to a cult leader waiting to be reborn.

The fully functional, submerged Vanuatu Post Office is definitely one of a kind.

A village on the east coast of England that has almost completely eroded into the North Sea.