An adorably sweet display of sculpted Precious Moments figurines.

This otherworldly church spire reaches up toward the heavens.

A small town garden is dedicated to a psychic dog with the most soulful eyes.

This historic motel standing at the "crossroads of America" offers a radio in every room and was saved by local protesters.

This art deco masterpiece was once a miracle spring mecca but is now simply a government office building.

The fastest mail service in the west is tracked and memorialized along this 1,400 mile trail.

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

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

A mysterious light of unknown origin on the backroads of Missouri.

The "World's Largest Underground Business Complex," a 55,000,000-square-foot city underneath Missouri.

A museum celebrating the Victorian obsession with hair art.

This abandoned prison castle has become an imposing gallery of graffiti art.

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

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

First known as the "Sample House," this construction mash-up was meant to be a living catalogue of building styles.

An abandoned meat mecca now serves as an excellent locale for urban exploration.

A kitschy, creepy St. Louis mainstay.

A floating museum that was sunk by a flood and left to rot in the tides.

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

This spot in St. Louis, marked with a simple sign, has seen more pro baseball than just about anywhere else in the world.

A chessmaster's dream destination.

A wax effigy of St. Valentine hides one of the saint's relics.

An extensive collection of fine art devoted to man's best friend.

An abandoned factory along the Mississippi coated by a giant mural.