"The most colorful grottoes of the world.

This extremely narrow tenement boasts a maximum occupancy of just two.

A standing relief of a Norman knight whose posture marks him as a Crusader.

The underground sanctuary of a mysterious ancient cult.

Skeletons dressed in extravagant 18th century royal costumes cavort in the aisles of this German basilica.

At the crypt of St. Mary of Eulogies and the Dead you are left alone to ponder mortality among piles of skulls.

Akureyri is home to an oversized can of one of Iceland's favourite beers.

This modern monument to pagan belief looks like it was transported straight from ancient times.

Staves, storm-calling, and of course, necropants.

The oldest church in Iceland is one of the few to feature ornate decoration.

An encyclopedic collection of mammal penises.

One of the tallest buildings in Iceland, and perhaps, the most visually impressive.

One of the most remarkable caves in all of Iceland was created by a once raging river of lava.

This castle was established by the 4th Duke of Montrose and is connected to the Buchanan Clan.

This beach runway is off limits during high tide.

Rumored to be the famed pirate's lookout tower, this historic stone structure is now just watching for tourists.

The most iconic structure in Scotland has been home to bishops, colonels, and Sean Connery characters.

Remnants of a storybook amusement park hidden behind a strip mall.

The Mysterious Witch Bonney, a haunted statue in an old industrial city.

The oldest stone house in Paris was built by its most famous alchemist.

This hunter-gatherer architecture is believed to be the oldest religious complex known.

Abandoned city hidden from the world by tropical forest and isolation on the coast of Kenya.

Iron Age "bog person" preserved for over 2,300 years.

Centuries-old bridges grown from tangled roots.