This mosaic-covered bar is brimming with curated curios.

The obelisk meant to mark the founding father's grave at Monticello is actually on the University of Missouri campus.

Entombed in this strange, white stone hill are the deadly remains of radioactive weapons production.

An abandoned concrete jungle surrounded by a lush park.

An urban forest overtakes what was the greatest failure of utopic urban housing.

This historic cliffside mansion uses a natural cave for air conditioning.

A cave 150 feet beneath Kansas City is the perfect climate for growing 10,000 delicate orchids.

A geological oddity formed by two rivers carving out a mass of limestone on both sides.

400 million-year old limestone caverns nestled in the Ozarks served as shelter and a hideout for cultures throughout North American history.

The show pony of cave systems, Fantastic Caverns manages to live up to its name.

Community bookshelf of 25-foot-tall book spines.

Erosion and time have created a naturally-formed water park.

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

The world's largest man-made underground caverns offer unparalleled underwater wonders.

The history of the treatment of mental illness, illustrated in all its gory detail, and housed in an asylum.

The notorious couple camped at this site after a bloody shootout with police.

A mysteriously dark cemetery monument fuels stories and legends galore.

The remains of a bustling turn-of-the-century park built to showcase the wonders of electricity.

Lured here by the promise of tens of thousands in gold, Jesse James started a quintessentially American trend of robbing trains in-motion.

For just a few bucks, this Iowa funicular will let you feel like an 1800s fat cat.

A place of great reverence for Trekkies everywhere, a hero's future birthplace.

A warning to the weak-kneed: This narrow bridge does its swinging eight stories high.

This Nebraska town wants to double its population with plywood cut-outs of townsfolk.

America's largest man-made forest was planted in an effort to bring back the past.