This micro-nation may be some sort of prank, but its constitution sure seems official.

This medieval Estonian tower provides access to a series of tunnels that have been home to soldiers, punks, and fine art.

Home of the world's largest crocodile.

Once housing children next to hardened criminals this historic jail once displayed Ned Kelly's skull until it was stolen.

What looks like a suicide in progress is actually a statue of Sigmund Freud.

This Prague museum collects brutalist relics and memories from the country's former Soviet rule.

Monument to a suicide protesting the Soviet invasion.

Op-art architecture designed for happiness.

This Slovakian statue of an emerging sewer worker might just be a bronze peeping tom.

Baroque celebration of the end of the Great Plague of Vienna.

Legends surround an ancient tree trunk riddled with nails for good luck.

Renaissance hospital featuring a rotating door into which unwanted babies were dropped.

High in the clouds of San Marino sits an ancient tower with some curious prisoner graffiti.

Single runway interrupted by a busy road that cuts across its middle.

This massive fiberglass Gulliver turns every visitor into a Lilliputian.

A king's pet, a pope's gift, an artist's inspiration, and a tragic shipwreck.

This little blue house pokes out over the campus of UC San Diego, seven stories high.

The world's most remote airport.

This was once the center of the Birdman cult, and is now a World Heritage Site.

This large round boulder is said to emit spiritual power, but it may just be magnets.

The world's longest outdoor covered escalator system transports commuters through Hong Kong's hilly terrain.

Climb to the top of the world's largest seated bronze Buddha.

The world's only complete colossal squid specimen is on display at the Te Papa Museum.

Gutted during the Liverpool Blitz, this architectural husk has been left destroyed in honor of the dead.