The red crab exhibits one of the most spectacular migrations on earth, despite manmade obstacles.

This cramped crevasse saw the entire population of its island suffocated inside its depths.

A seven-century-old jail tells a not-so-pleasant history of crime and punishment.

A playground built by the kids that is a child's wonderland, and a helicopter parent's nightmare.

Tour the world's largest deep-hole dimension granite quarry, where you can view the plant where gravestones are made and roll a ball down the outdoor granite bowling alley.

Last church of this militaristic WWII style.

An extraordinary collection of scientific instruments - and Einstein's chalkboard - inside the world's oldest purpose built museum building.

This mountaintop beacon is only lit three times a year but shines like some kind of all-seeing eye.

An alchemist's "magic door" stands in the middle of a Roman park.

Astronomical observatory above Lake Titicaca.

Now containing the bones of the actual conquistador, instead of someone else.

Ain't no party like a ghost town party.

A New York garbage depot holds a secret collection of weird and wonderful refuse.

The home of the Dead Sea Scrolls is an abstract modernist dream.