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

An essential stop before plundering, BYO Cutlass.

The restaurant keeps a hidden séance room on the second floor and reserves a table for the spirit of the former owner each night.

This futuristically sylvan church is a glass-enclosed marvel of modern architecture.

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

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

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

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

Aqueducts have dramatically changed this old lake, now home to tufa towers and its very own species of tiny brine shrimp.

Enormous piles of historically significant stones, dumped by Congress in a forest, and abandoned for 60 years.

All that's left of the quintessential "cabin in the woods."

A reproduction of earth's many biomes.

Rustic natural hot springs in the deciduous rain forest.

Couple's personal collection of pinball machines turned public pinball museum.

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

"Looks so real, it's scary!"

The scuba diving training facility was named for the steam that rises from the cave's chimney.

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 one-time watch house for incoming ships at the Golden Gate now stands abandoned and hidden in trees.

A masterpiece of LGBT art has been restored in what may now be the most valuable restroom in America.

The largest earthwork effigy in the world.

This geothermal hot spring hides beneath a slowly growing mineral dome.

The trials and tribulations of marking Poe's grave.