Virgil's many-mouthed gateway to the underworld.

Hellam Township is reputed to feature seven remote gates, which when passed through in the right order, open an entrance to hell.

Steaming blood-red hot spring from hell.

The world's toughest modern Christian pilgrimage leads directly to the gates of Hell.

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.

Sparkling, calcite-covered skeletons of children who may have been sacrificed to appease an angry god.

A mysterious chasm in the heart of the ancient Roman Forum, the Lacus Curtius was once believed to be a gateway to hell.

The ancient settlement attracts tourists from all over looking to learn about the Chinese vision of the afterlife.

A stratovolcano located in the south of Iceland, with a long history of charted activity and a rich mythology attached.

A cave network located at the southernmost tip of mainland Greece was once believed to be an entrance to Hades.

The English graveyard of Mineral del Monte, a magical little piece of Cornwall in Mexico.

A winding medieval path was used by mourners to carry their dead to the nearest church.

The longest non-mortared wall in the country is one man's tribute to his displaced Yuchi ancestor's five-year journey to her homeland.

Thanks to a spelling mistake this bizarre beaver-tiger hybrid became the symbol of a Siberian town.

A Texas cave network is home to some of the world's most spectacular-looking and bizarrely named mineral formations.

An encyclopedic collection of mammal penises.

The headquarters in Salem doubles as an occult art gallery.

Over 100 concrete munitions bunkers are all that remain of a Pennsylvanian village seized by the US government.

The self-mummified monks of Japan.

This elegant arc of a waterfall marks a religious turning point.

This bar named after the world's first mixed cocktail was home to one of New Orleans' most notorious politicians.

100-year-old shipwreck you can walk up to at low tide.

The marker offers a rare chance to be in four U.S. states at once, though there's some controversy over its geographic accuracy.

An ossuary built in 1210 to collect bones from the Ospedale Maggiore of Milan.