This alley-cum-fan gallery in the ex-Nirvana drummer's hometown holds the world's largest drumsticks.

The FBI's urban training course may have the highest fake crime rate in the world.

Mother Nature outdoes herself with this stunningly beautiful set of caves carved into marble.

For a time this small Florida town of less than 1,000 residents was the national leader in dismemberment.

This astonishingly geometric cave has inspired everyone from Jules Verne to Pink Floyd.

Over 120,000 curious objects that have shaped our modern world.

A humid oasis combines recreation with exploration in a unique underwater cavern.

Curious cave that stays a cool 56 degrees all year long.

These spooky and unusual stone formations create an underworldly landscape.

This naturally heated mountainous creek has created a group of neon blue pools of potentially deadly boiling water.

Old-fashioned knowledge and modern engineering create the world's only rotating boatlift.

The mystery of this small, brick pond eluded its possibly only investigator until his death.

The smallest restaurant in the world.

In the heart of Brigham Young's promised land sits a festering plot of industrial ruin that has been claimed by society's outcasts.

A "miracle" that seems to produce more holy fistfights than holy revelations.

Neighborhood in Jerusalem is home to the ultra-orthodox haredim.

Want to build a wind turbine? Secede from the nation.

The most disputed archipelago in the world.

A micronation of epic proportions.

An autonomous republic of Orthodox monks.

Ruins of the Crusaders' headquarters.

A 550-square-meter micro-nation off the coast of Britain.

A spherical "micro-nation" in the heart of Vienna.

"We Seceded Where Others Failed."