This sinkhole in the Arizona desert is filled with carbonated, arsenic-rich water

A wild west cemetery in Tombstone, Arizona, provides a window into the Old West.

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

A spiritual vortex among the red rocks in Sedona.

Ninety feet off the valley floor is an ancient dwelling put under protection of the U.S. government by Teddy Roosevelt.

A dazzling display of lights and crystals.

The only depiction of Abraham Lincoln holding a weapon, and the names of all 9,000 Cuyahoga veterans of the Civil War.

Inside the unassuming cemetery chapel is a magnificent stained glass window and mosaics.

Cleveland's giant "free" stamp is a nod to the Civil War, but was misinterpreted for years.

Funded by John D. Rockefeller, this is one of the earliest, and most beautiful, shopping arcades in America.

This spectacular public market has got meat, fish, vegetables, baked goods, and enough kielbasa for a lifetime.

This sandstone mansion was the home of two of Oregon's most important pioneers.

The magic's in the hole!

The seamy, underground secrets of Portland's criminal past.

Borne from segregation and exclusion, Durham’s Black Wall Street is now a living reminder of the city’s past

This metal disk commemorates the birth of a historic American holiday.

Don't be surprised if you see a long-necked dinosaur peeking out from among the trees in Northgate Park.

This too-low North Carolina railroad trestle is still a notorious big rig executioner.

The scene of the largest surrender of Confederate troops at the end of the American Civil War.

Conjoined twins Daisy and Violet Hilton were stars of the vaudeville circuit.

This roadside attraction has been serving out its fair share of hearty folklore and chaos since 1858.

This nine-story building can be played like an instrument.

This North Carolina store preserves a historic moment in America's movement for racial equality.

This bright yellow relic is the final survivor of a short burst of seashell-shaped petrol pumps.