Secret North Korean passage discovered below the world's most dangerous border.

Known as the site of 'El Dorado,' this mysterious lake is rumored to hold gold beneath its waters.

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

This tiny shop has been serving traditional tamales for more than 200 years.

This elegant Colombian fortress was one of the torture headquarters for the Spanish Inquisition.

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

Enchanting cave with a river crashing through the roof.

Unparalleled stargazing, one of Colombia's best observatories, and a swimming pool can all be found in the middle of this ancient tropical forest.

The Andean town where every single building is decorated with a brightly colored frieze.

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