This singular broken monument, now housed in a museum, was the cause of a worldwide "Mayan Doomsday" phenomenon.

A neo-Gothic temple in central Mexico featuring a labyrinthine network of crypts.

This strange sculpture of a menacing skull surrounded by sun rays was discovered at the foot of the Pyramid of the Sun.

The "world's smallest volcano" has been used to store meals and dispose of dead bodies.

A disquieting Aztec sculpture displays hundreds of stone skulls representing the victims of human sacrifice.

Cave where bat-eating snakes hang down from the ceiling.

A graceful natural rock formation stands astride the point where the Gulf of California meets the Pacific Ocean.

A flooded Mexican cave that hides a river beneath the water.

A magical sinkhole on the Yucatán Peninsula is adorned with mini waterfalls and hanging vines.

Frida Kahlo's childhood home, now a museum of her life and works.

An island filled with hundreds of hanging, decomposing, decapitated dolls.

The whiskey producer's archives includes a historical list of infractions committed by and associated penalties exacted upon employees.

A massive Celtic cross secretly growing in an Irish forest.

Take a monster truck tour around an ostrich farm in the middle of the desert.

A geological mystery on Camelback Mountain.

The fading, forgotten remains of a once bright and booming factory.

Thousands of Mexican Free-Tailed Bats soar around an abandoned storm drain at sunset each summer.

A self-built castle made by a mysterious man.

Dramatic river bend surrounds a natural red-rocked pedestal.

Another in a long tradition of legends regarding infernal seats.

A 35-foot-tall fork stuck in the ground outside an office building in Missouri.

The house where the famed outlaw was shot by a dirty coward is now a museum to the criminal's legacy.

An unknown Hall of Fame in Jackson, Tennessee.

An engraved boulder marks the spot where Patsy Cline's life ended in a plane crash.