The eccentric mansion of one the most popular horror authors of modern times.

The ghost town that ended up on Ebay.

The highest bridge in America was built for an almost unnervingly small amount of money.

One man's ambition created this psychedelic log home.

This rugged area of red rocks and arches is often considered one of the most beautiful places on Earth.

A sculpture made of 10 Cadillacs as a monument to the "Golden Age" of the American automobile.

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

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

Giant, natural amphitheaters made of delicate geological formations called "hoodoos."

The second oldest continuously operating bar in Louisiana.

Strange red rock formations that have been attributed to a higher power for hundreds of years.

Quite simply the largest tree in the world (by volume).

According to one local tradition, the entrance to the Voodoo underworld can be found in New Orleans through seven gates scattered throughout the city's French Quarter.

Frank Lloyd Wright's most iconic home dangles over a Pennsylvania waterfall.

These delicate buggers are some of the rarest fossils that have bubbled up from the Tar Pits.

This historic "City of the Dead" lies prominently in the center of New Orleans' famous Garden District.

The largest hot spring in the United States is, as the name suggests, a stunning show of natural color.

This symbolic piece of New Orleans architecture is also home to a few ghastly stories.

A lush green oasis in the middle of Chicago.

This 4,000-foot-diameter hole is touted as "the most well known, best preserved meteorite crater on Earth."

This knobby, drooping New Orleans oak is a favorite place both for climbing and for meeting giraffes.

The first declared National Monument in the United States.

Four glass boxes hover over 1,000 feet in the air to give visitors an unparalleled view of Chicago.

A forsaken wonder in the middle of the East Side neighborhood.