A Depression-era sculpture by Charles Umlauf survives in a small suburban post office.

A mysteriously dark cemetery monument fuels stories and legends galore.

A living snapshot of a different time in America is preserved and maintained by a community of volunteers.

A mistaken marker makes an erroneous claim along the historic Old Divide Road.

An old saloon in the West filled with history, and according to some, a few dozen ghosts.

A prison-like structure guards the remains of a notorious Old West outlaw.

A wealth of pop culture statuary and green chile dishes give this roadside restaurant clout.

The highest point in Texas is capped by a big silver pyramid.

At this research institute, the chile is king.

The second-largest cave chamber in the world was discovered in 1898 by a 16-year-old and a friend known as "Pothead."

A cave's rare beauty held a cavernous secret hidden underground.

Twice a year, visitors can tour the desolate site that birthed the Atomic Age.

This is one really big nut.

A museum dedicated to the alleged Roswell Incident.

The symbol was surreptitiously built into the river bank by German prisoners of war.

A sculpture of a giant man escaping from the depths of the Earth.

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

The red brick house where the father of rock 'n' roll wrote some of his classic hits.

A historic house in St. Louis was plagued by a series of suicides committed by family members involved in a successful brewery.

One of few surviving standpipe water towers in the U.S.

University City's quirkiest resident lives in a park named after its first.

A big museum full of little worlds.

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

This former small town was destroyed not by the motor oil it sprayed the ground with but by the toxic waste that was added.