This narrow canyon has been carved by the river over thousands of years into spectacular and curious forms.

A natural gas leak provides a flickering flame beneath a waterfall.

One of Frank Lloyd Wright's greatest—and favorite—architectural masterpieces was almost lost.

Toxic waste disaster that founded the Superfund program.

Finale of "William Tell Overture" can be heard as drivers pass over grooves in the road.

Brightly colored 30-foot-tall totems light up the desert sky just outside Las Vegas.

A restaurant on Staten Island showcases a different grandmother’s cooking every night.

Enjoy an overnight at an old haunted B&B site of the Borden family murders.

Hundreds of glow-in-the-dark objects light up a museum in a historic zinc mine.

Stripes of flowers bloom each spring in a 50 acre rainbow of color.

New Orleans' famous cemetery, located on the site of a former race track.

A morbid secret lies hidden within the beautiful walls of the Boston Athenaeum.

Better known as the "Body Farm," this unique research facility has been studying how human bodies break down since the 1980s.

An enormous park-like oasis, full of famous Chicagoans' graves.

An abandoned castle owned and ignored by Masons carries a cursed history.

The abandoned husk of a mental institution that failed to save a Jazz Age icon still sits nearly unchanged.

These eerie outliers of the lightning bug family glow a mysterious blue color.

One of the most scenic stretches of road in America winds between some of the country's oldest trees.

This woodland architectural installation acts as a camera obscura for the heavens.

This natural wonder drops 16 stories straight down through rare flora and streaming waterfalls.

Breathtakingly blue walls shimmer inside the "Glacier Behind the Town."

The remains of an idyllic small town built for the film 'Big Fish' still stand around a rundown main street.

The largest earthwork effigy in the world.

The angel of death appears to weep black tears at this grave marker.