This 15th-century island fortress later served as home to the executioners no one wanted to live near.

The oldest olive tree in Greece has been bearing fruit for at least 2,000 years.

A quirky bookstore hidden beneath a sea of whitewashed Greek villas.

This ancient Greek place of assembly and marketplace is being revealed layer by layer below the modern Athens cityscape.

This legendary city has been a tourist attraction for centuries.

The hallucinogenic center of the ancient world.

These old World War II fortifications have been transformed into an unusual equine attraction.

A public display of random paleontology.

Tiring of digging out the door to this church for every service, it was eventually abandoned to the sands.

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

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

An abandoned lighthouse awaits its destiny: being buried under shifting sand.

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

A natural wonder in south Denmark.

Old Danish castle immortalized in Shakespeare's Hamlet.

This colorful artistic feature atop a Danish art gallery allows visitors to stroll through a rainbow.

This 1,300 year old monastery built atop a single rock was once only accessible depending on the whims of the tide.

The vast, legendary catacombs hold secrets much stranger than stacked bones.

This small Australian town is considered home to the "Yowie" or the Aussie Big Foot.

This rickety old shed hides a trove of secondhand literary treasures.

Taxidermy of the racing horse with a huge heart, who inspired hope in the Depression.

Brisbane's manmade urban beach has enough water to fill five Olympic-sized swimming pools.

There's nothing shrimpy about the world's largest artificial prawn.

One of the first big sculptures anywhere in Australia.