No one knows for sure why this town's dead refuse to rot.

This Bogotá museum houses the world's largest collection of pre-Columbian gold relics.

Ripped apart by a bomb in 1993, the shell of Pablo Escobar's infamous vacation house still stands.

An ancient city hidden in the heart of the Sierra Nevada mountains.

A cozy bookstore and coffee shop in the heart of Cartagena's Old City.

Cathedral carved out of salt, located a mile below the earth's surface.

Former drug lord’s manor, now a theme park. Watch out for the hippos.

Colorful lights and mirror-like brine pools create trippy illusions within the historic mine.

This picturesque mansion has gone from opulent ruin to nature museum.

A rare chance to get up close and personal with a 13-mile ribbon of ice near downtown Juneau.

Massive mounds of golden sand look like a desert landscape randomly plopped in an Arctic forest.

This historic collection of Native Alaskan artifacts was resurrected through a partnership between the WPA and tribal artisans.

The ruins of this Alaska gold mine form a gorgeous ghost town.

One woman's dream became a train hotel in her backyard.

Gorgeous cave resemble a winter wonderland.

Breathtakingly blue walls shimmer inside the "Glacier Behind the Town."

The forgotten mummies of Dakhla oasis.

The largest known Ancient Egyptian obelisk.

An abandoned outdoor movie theater in the Sinai desert.

A massive work of modern art that appears to be a crop circle in the middle of the desert.

An alien landscape of chalk-rock in the Egyptian desert.

An ancient instrument used to measure the waters of the Nile so Egyptian farmers would know whether to expect famine or flood.

An ancient city exhumed from the depths of the ocean.

For 150 years one family has been producing the iconic hot sauce on a bayou island made of salt.