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

The Old Courthouse takes visitors on a captivating trip through St. Louis' timeline.

An unexpected but incredible collection of wildlife dioramas spanning rainforests, swamps, forests, and plains.

Two hundred tons of pioneer artifacts were painstakingly recovered from a shipwreck at the bottom of the Missouri River.

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

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

The maximum security facility was once thought to have "the bloodiest 47 acres in America."

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

In the St. Francois Mountains in the Ozarks at 1,772 feet above sea level, Taum Sauk Mountain is the highest (and possibly oldest) peak in Missouri.

Giant granite rocks standing end-to-end like a train of circus elephants.

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

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

A home designed to be on the cutting edge of comfortable, low-cost living.

On the side of Arkansas' Great River Road stand the remains of a forgotten World War II POW Camp.

Town not known for anything except its strange name.

In rural Iowa, an imported 19th-century windmill overlooks an unlikely enclave of Danish culture.

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

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

An old town theater converted into a celebration of the hobo legacy.

This beacon for pre-radar pilots once guided Charles Lindbergh to a safe touchdown in Tulsa.

An acoustic anomaly with a mysterious cause.

This unusually circular centenarian barn became a Route 66 icon.

Behind the Cowboy Hall of Fame is a burial ground for good horses and a famed rodeo bull.

Very likely the only museum in the world that celebrates the glory of the humble banjo.