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

This replica of the Greek structure is in the heart of Nashville.

The largest earthwork effigy in the world.

The history of whiskey and all of its boozy glory, from Colonial days to modern American cocktail culture.

Marking the spot where a conquistador gave up his search for the fabled Seven Cities of Gold.

A ghost town revived by hippies and wanderers throws its own special brand of holiday parade.

Air Force Academy Chapel made of 100 identical tetrahedrons works to inspire those of all religions.

The ancient dwellings of the Puebloans, located in the cliffs of majestic mesas.

A phenomenal assembly of pueblos in New Mexico is the most complete example of ancient ruins north of the border.

This museum started as a collection of Manhattan Projects and continues to add exhibits as they are declassified.

The ruins of this abandoned fort now stand as a picturesque reminder of America's march West.

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

This popular pilgrimage site offers a hole filled with holy healing dirt.

Wedding chapel's mysterious spiral staircase said to be miraculously constructed.

A sprawling collection of over 106,000 toys from around the world.

An enormous pink granite batholith, long attributed with spiritual powers by the Tonkawa Indians.

An emerald-green grotto just a short trip from Austin.

One part antique store, one part curiosities hodge-podge.

A store full of vintage and indie toys designed to bring out the kid in even the crustiest of adults.

Home to the largest urban bat colony in North America, estimated at 1.5 million bats.

Turning night into day in Victorian-era Austin to thwart a serial killer.

Life's work of sculptor Elisabet Ney remains preserved in her last studio.

This popular bar has been blurring the line between normal and edgy for more than 75 years.

A 200-year-old bar in the historic French Quarter refuses to give up its place in history, nor its role in securing ours.