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Scientists uncover a city, a chamber, and a complex, and map a tunnel network.
Scientists uncover salt chambers, bunkers, old kingdoms, and mysterious caves.
Archaeologists find a tomb, a haunting cave, and a sophisticated labyrinth.
Explorers discover tunnel systems, a sprawling city, and military barracks.
Volunteers unearth tunnel systems, and a sealed burial tomb is found.
Explorers find a tunnel system, mass graves, city foundations, and longhouses.
A buried ship, wartime cellars, jar burials and mass graves are excavated.
Old Tombs, buried coins, and a 4,000-year-old oak log coffin are discovered.
Underground chambers, medieval tombs, old ruins and fossils are uncovered.
A mysterious tunnel, colonial ruins and warrior cemeteries are exposed.