Hidden behind Lincoln's head is a chamber containing enamel plates documenting American history, sealed in a teakwood box in a titanium vault.

This soda factory is one of the last in America to use real cane sugar despite the protestations of Dr Pepper.

This descriptively-named art museum occupies an abandoned former county jail

Some islands... they come, they go, especially on Lake Travis.

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

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

The first graveyard named "Boot Hill" was established in Hays, Kansas, years before better known cemeteries with the same name.

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

The first declared National Monument in the United States.