The unique ecosystem atop an Australian mountain is home to some colorful inhabitants.

Charnel house at the foot of Mount Sinai.

Science fiction's grandfather has a fittingly marvelous tomb.

The world's largest mountain carving could fit all of Mount Rushmore inside it many times over.

The vast, legendary catacombs hold secrets much stranger than stacked bones.

A cemetery for only coon hounds in northwest Alabama.

The world's longest known cave system.

Live long and prosper in Tennessee.

More than five miles of underground passageways.

An abused and forgotten metropolis, abandoned for centuries.

Medieval museum built over Roman baths that features famous tapestries of a lady and a unicorn.

The second oldest continuously operating bar in Louisiana.

A museum of unusual collections, mini-towns, and a half-dog, half-alligator.

Curious cave that stays a cool 56 degrees all year long.

Once one of the world's great cities, Cahokia was a place of religious worship, trade and mass human sacrifice before being mysteriously abandoned.

An impressive collection of dollhouses and an homage to the frog-leg canning industry.

An old-timey wax exhibition campily depicting New Orleans legends and scandals.

The LSU mascot lived on the college campus in one of the most impressive tiger habitats in the country.

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.

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

Prehistoric animals decorate this popular outdoor park.

A vision of beautiful Hindu architecture in the middle of the American South.

This massive store is home to an eccentric collection of vintage, retro, and peculiar goods.

Healing Springs that once ran red with soldiers' blood.