Ruined 11th century abbey built by King David I in Edinburgh, Scotland.

This Memphis recording studio launched the careers of Jerry Lee Lewis, Johnny Cash, and Elvis Presley.

A mysterious light floating in the trees of Arkansas may be a piezoelectric effect.

A 19th-century Gothic, castle-like statehouse by the Mississippi River.

A museum and shop on Bourbon Street located in the French Quarter.

A museum of unusual collections, mini-towns, and a half-dog, half-alligator.

The second oldest continuously operating bar in Louisiana.

South Carolina's last remaining slavery auction house is now a museum devoted to its own tragic history.

Andy Griffith's hometown has made itself up to look like the fictional town of Mayberry.

Some North Carolina Cherokee have been keeping their history alive for decades with a single play.

This road in the Great Smoky Mountains was supposed to assuage a displaced community, but ended up a $52 million dead end.

Moonbows over Kentucky.

Recycling meets art in this colorful barricade.

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

This quirky hot springs town known to locals as "T or C" was named after a radio show.

Crumbling remnants of what was once a booming town full of silver.

These ruins of a pre-Columbian cliff village are among the most beautiful and well preserved in New Mexico.

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

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

A small metropolis of Pueblo cave dwellings have been carved right into the hillside of this national monument.

Twenty-seven massive radio antennas on the high plains of New Mexico search for life on other planets.

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

Legends surround this jagged rock formation in the New Mexico desert.

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