“Lost” cities, hidden to the outside world, offer valuable information about the past when they’re found and studied. Usually ...

For decades, researchers and treasure hunters alike have been trying to determine if the lost city of Atlantis could be found ...

This 'Lost City' boasts a house that had a massive 100 rooms inside it while still being partly submerged underwater.

The treasures found in the "lost city" of Tanis rival those of King Tut's. Yet for more than six decades the riches from its rulers' tombs have remained largely unknown. Many who know of Tanis at ...

The Lost City, found in 2000 near the Mid-Atlantic Ridge, is a deep-sea ecosystem with towering limestone formations resembling underwater cathedrals. A 5-foot-wide flange, or ledge, on the side ...

In the heart of Mexico, special technology has uncovered a huge, thousand-year old city the size of Edinburgh. At one time the city, Valeriana, is thought to have been home to more than 30,000 ...