One of the indelible moments of the American Revolution took place at this location.

The site of Paul Revere's historic two lantern warning.

The American Revolution was galvanized into serious action due to the tragic clash with British soldiers that occurred at this location.

A multi-storied adobe complex has been inhabited for more than a thousand years.

This razorback ridgeline has doubled as a scenic drive since the early 1900s.

Possibly the world's only drive-in movie theater with an attached motel.

The scene of one of the darkest moments in American labor history has been left essentially untouched since the tragedy.

The Denver airport is guarded by a 32-foot-tall sculpture of a demonic horse.

The highest bridge in America was built for an almost unnervingly small amount of money.

When ecosystems collide in the arid Southwest.

This historic train station has been converted to a locomotive themed hotel.

This funicular railway rumbles along for a mile up the nearly vertical face of Chattanooga’s Lookout Mountain.

A recreation of the doomed ocean liner in the middle of the Smoky Mountains.

The mysterious wonder of an underground waterfall is illuminated by multicolored lights.

This head-spinningly bizarre Depression-era art cave is wall-to-wall quartz and Jesus.

Enormous lake at the bottom of a unique cave system.

World's largest precision optical instrument used to detect Einstein's elusive gravity waves.

This Tennessee museum is dedicated to a tragic railroad hero who inspired the famous ballad that bears his name.

Walk the whole Mississippi River!

Every day a troupe of pampered water fowl walk the red carpet to their favorite fountain.

Mass graves and Victorian monuments mark the history of Memphis in this 19th century cemetery.

This two-room shotgun shack in Tupelo is the birthplace of a King.

This iron and wood Civil War city-ship was the first vessel to be sunk by an electrically detonated torpedo.

A historic Civil War estate-turned-museum looks back on the Confederate States of America.