National Geographic HD
Vikings: The Rise and Fall
The mid-10th-century reign of Harald Bluetooth as king of a newly unified, powerful and Christianized Denmark marked the beginning of a second Viking age. But the reign was not to last with the Normans finally winning the English Kingdom in 1066. We look at the final days of the Viking empire.
2026-06-11
Hidden Beneath the Cities
A mysterious tunnel, colonial ruins and warrior cemeteries are exposed.
2026-06-11
Hidden Beneath the Cities
Old Tombs, buried coins, and a 4,000-year-old oak log coffin are discovered.
2026-06-11
Hidden Beneath the Cities
Explorers find a tunnel system, mass graves, city foundations, and longhouses.
2026-06-11
Hidden Beneath the Cities
Explorers discover tunnel systems, a sprawling city, and military barracks.
2026-06-11
Hidden Beneath the Cities
Scientists uncover salt chambers, bunkers, old kingdoms, and mysterious caves.
2026-06-12