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

A memorial to a Swedish hockey player's "encounter" with aliens.

A little Lady Liberty stands in the Norway town where the copper for the real thing came from.

The great polar explorer is remembered in this far northern town, where he embarked on his final expedition.

A flying saucer has landed for good in the middle of a tiny Canadian town.

Are these prehistoric metal pipes evidence of alien plumbers? Nope, but they are amazing nonetheless.

Hamburgers are intensely proud of their tunnel beneath the river.

Created hundreds of years ago, the magical follies and landscapes at this park were almost lost to time before being restored.

This former quarry is now a vibrant labyrinth of magical in situ sculptures.

One of the largest sculpture collections in the U.K. features history's greats, from Bob Dylan to Galileo, in bronze.

A petite castle folly in the English countryside.

A folly built to satisfy a gentleman's bet that he could drive his horses through the eye of a needle.

This ruined folly was originally built to honor a failed American state that would have become "Westsylvania."

This folly built to commemorate an aristocratic victory over Catholic rebellion plays tricks on the eye.

The yawning maw of this pagan visage is said to bite off the hands of liars.

This Nazi-built amphitheater was constructed on a sacred mountain site used by various German cults.

The largest manmade caves in Europe now function as a motorbike club's headquarters.

This fairytale castle was built as a show of power but was nearly torn down thanks to its history of torture.

Each time a baby is born in Ghent, these streetlights flash in silent celebration.

This narrow Ghent alleyway is an officially sanctioned street art tunnel.

The site where one of the most famous poems of World War I was composed is preserved to honor the legacy of the work.

A moving memorial to the fallen and missing from WWI trenches.

In an area where the remnants of WWI are discovered on a regular basis this preserved frontline trench may be the most amazing.

A Cold War command center is hidden under an idyllic countryside.