This Armenian monastery was carved out of cliffs and named after the spear used to stab Jesus.

Right up until the 20th century this network of man-made caves was the biggest village in Eastern Armenia.

The most visited pilgrimage site in Armenia once held a saint in a pit for 13 years.

A geological oddity topped with a 2,000-year-old pagan temple.

Long before air conditioning, Persian architects found an ingenious way to cool off.

The gilded, masterful astronomical clock will calculate time, dates, and planetary positions for thousands of years to come.

Micro-nation based around a nine-story high illegally built tower.

From Coke II to Google Glass, this exhibit features some of the most spectacular commercial flops.

Swedish skyscraper with a 90° twist.

This poignant sculpture of a gnarled weapon is a symbol of non-violence.

Hundreds of mossy stones engraved with bits of philosophy, literature and random musings.

Beneath Denmark's Højbro bridge, a bronze merman and his seven sons forever mourn for the mother and wife who left them for land.

Bored potato-guarding Nazis etched their thoughts onto a brick storage building in Copenhagen's Meatpacking District.

Hans Christian Andersen for the postmodern world.

Copenhagen's celebrated theme park and gardens.

When this Iron Age bog body was discovered in 1835, it was thought that she had died recently.

Mounds, rune stones, and a 1,000-year-old church, left behind by Denmark's first two kings.

A Neolithic passage tomb said to have sheltered two legendary Irish lovers.

Monty Python fans will recognize this abandoned mine as the Cave of the Killer Rabbit of Caerbannog.

The original home of the Lego has a huge amusement park dedicated to the iconic plastic toy.

Preserved "bog person" that is over 2,000 years old.

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

Moorish signal station on a stratgic rocky outcrop.

Three bridges and one giant canyon make up this fantastic Spanish settlement.