U.S. Army Lt. John W. Gunnison, then working on a survey of the Great Lakes, wrote a letter to his Mormon friend, Albert ...

Archaeologists in Mexico have discovered ancient Mayan pottery in a cave system a little more than 10 miles away from downtown Playa de Carmen.

In the Guerrero mountains of southern Mexico, cave guide Adrián Beltrán Dimas and Russian speleologist Yekaterina Katiya Pavlova discovered a hidden room in Tlayócoc cave. They found centuries-old ...

There are many ancient villages, towns and even cities around the world, but very few of them are located underground. However, there is one spot in a country loved by tourists where that happens ...

Through radar scans and artifact finds, archaeologists identified the mystery ruins of Gradishte as a forgotten ancient city. Photo from California State Polytechnic University, Humboldt Under a ...