Smithsonian Channel Mummy expert Ramy Romany investigates a mysterious underwater grave believed to be guarded by a Mayan serpent deity; when Ramy dives in, he uncovers evidence of biological warfare. 2026-09-10 The remains of Tutankhamun's parents. 2026-09-10 2026-09-10 Mummy expert Ramy Romany investigates a mysterious underwater grave believed to be guarded by a Mayan serpent deity; when Ramy dives in, he uncovers evidence of biological warfare. 2026-09-10 The remains of Tutankhamun's parents. 2026-09-10 2026-09-10 Mummy expert Ramy Romany investigates a mysterious underwater grave believed to be guarded by a Mayan serpent deity; when Ramy dives in, he uncovers evidence of biological warfare. 2026-09-10 The remains of Tutankhamun's parents. 2026-09-10 Visiting London's Gherkin, Seattle's Evergreen Point Floating Bridge and Lyon's Musée des Confluences to uncover how and why they were built. 2026-09-10 In Philadelphia, Mike is on streets, in tunnels, on tracks and in trolley restoration garages; he is working shoulder-to-shoulder with the team that keeps one of America's largest and oldest mass transit systems running smoothly and on time. 2026-09-10 Tackling the grade 6 rapids and untamed waters of the Buller River on the west coast of New Zealand's South Island, blessed by a Māori elder of the Ngāti Apa ki te Rā Tō. 2026-09-10 Witness animal spectacles from high above the Earth; watch a whirling herd of northern nomads; see undersea behemoths show off in the Pacific shallows; track a U.S. porcine stampede; confront top ocean predators on the Florida coast. 2026-09-10 Jeremy Birch takes on a salvage to raise a vessel with a concrete hull; it's been in the Fraser River for a month, collecting silt and mud, adding 30 tons to its deadweight. 2026-09-10 Tackling the grade 6 rapids and untamed waters of the Buller River on the west coast of New Zealand's South Island, blessed by a Māori elder of the Ngāti Apa ki te Rā Tō. 2026-09-10 Witness animal spectacles from high above the Earth; watch a whirling herd of northern nomads; see undersea behemoths show off in the Pacific shallows; track a U.S. porcine stampede; confront top ocean predators on the Florida coast. 2026-09-10 Jeremy Birch takes on a salvage to raise a vessel with a concrete hull; it's been in the Fraser River for a month, collecting silt and mud, adding 30 tons to its deadweight. 2026-09-10 Visiting Australia's One Central Park, the Oslo Opera House and the California Academy of Sciences in San Francisco to reveal their architectural secrets. 2026-09-10 Mike helps fix the vessels that the U.S. Coast Guard use to keep the oceans safe; he replaces key parts of ship engines, removes a large crane from a buoy tender, and fixes a helicopter for a critical exercise. 2026-09-10 The Hawker Harrier flies as fast as a jet and hovers like a helicopter; uncover the groundbreaking technology behind this unique ability and how the Harrier became crucial for Britain in the Falklands War. 2026-09-10 Customs agents intercept a grenade launcher smuggled into the U.S.; a blizzard threatens to cut off a remote island airport; warm winter weather turns a village runway to mud. 2026-09-10 In Mexico's North, ancient runners defy impossible distances and living fossils reveal Earth's secrets; from Monterrey's industrial city to Guanajuato's revolutionary past, discover how mighty mountains forge unbreakable spirit. 2026-09-10 Mummy expert Ramy Romany investigates a mysterious underwater grave believed to be guarded by a Mayan serpent deity; when Ramy dives in, he uncovers evidence of biological warfare. 2026-09-10 The remains of Tutankhamun's parents. 2026-09-10 2026-09-10 Dig into a groundbreaking medieval silver mine revealed by a German sinkhole. 2026-09-11 The Sphinx, the Shroud of Turin, El Dorado, and other ancient mysteries. 2026-09-11 Open burial sites filled with secrets. Find powerful artifacts in a French rulers tomb, see what a tomb adorned with conch shells says about sacred ceremonies, and expose complex beliefs about animals and the afterlife in an Egyptian zoo graveyard. 2026-09-11 Dig into a groundbreaking medieval silver mine revealed by a German sinkhole. 2026-09-11 The Sphinx, the Shroud of Turin, El Dorado, and other ancient mysteries. 2026-09-11 Open burial sites filled with secrets. Find powerful artifacts in a French rulers tomb, see what a tomb adorned with conch shells says about sacred ceremonies, and expose complex beliefs about animals and the afterlife in an Egyptian zoo graveyard. 2026-09-11 Dig into a groundbreaking medieval silver mine revealed by a German sinkhole. 2026-09-11 The Sphinx, the Shroud of Turin, El Dorado, and other ancient mysteries. 2026-09-11 Visiting Australia's One Central Park, the Oslo Opera House and the California Academy of Sciences in San Francisco to reveal their architectural secrets. 2026-09-11 Mike helps fix the vessels that the U.S. Coast Guard use to keep the oceans safe; he replaces key parts of ship engines, removes a large crane from a buoy tender, and fixes a helicopter for a critical exercise. 2026-09-11 The St. Lawrence River is one that forged North America, allowing ships to traverse the continent; the adventure begins in Canada's first capital city of Kingston and near Canada's second-largest city of Montreal. 2026-09-11 Get a bird's-eye view of a mysterious explosion in China and a quickly melting glacier on Earth's iciest continent; investigate an orange haze enveloping the Big Apple, then float over a toxic, too-hot-to-handle lake in New Zealand. 2026-09-11 Chris Ward sets out with Josh Moreira and Ward's younger brother to salvage a light aircraft that's sitting on the seabed; Jeremy Birch braves the arctic conditions to salvage two vessels that have fallen prey to the crushing ice conditions. 2026-09-11 The St. Lawrence River is one that forged North America, allowing ships to traverse the continent; the adventure begins in Canada's first capital city of Kingston and near Canada's second-largest city of Montreal. 2026-09-11 Get a bird's-eye view of a mysterious explosion in China and a quickly melting glacier on Earth's iciest continent; investigate an orange haze enveloping the Big Apple, then float over a toxic, too-hot-to-handle lake in New Zealand. 2026-09-11 Chris Ward sets out with Josh Moreira and Ward's younger brother to salvage a light aircraft that's sitting on the seabed; Jeremy Birch braves the arctic conditions to salvage two vessels that have fallen prey to the crushing ice conditions. 2026-09-11 Exploring the design and engineering stories behind D.C.'s Museum of African American History, the Montreal Tower and the Equinor building in Oslo. 2026-09-11 Mike helps fix the machines that keep one of the United States' biggest ports moving; he assists a team in moving a 3-million pound crane. 2026-09-11 Mummy expert Ramy Romany investigates a mysterious underwater grave believed to be guarded by a Mayan serpent deity; when Ramy dives in, he uncovers evidence of biological warfare. 2026-09-11 The remains of Tutankhamun's parents. 2026-09-11 2026-09-11 Dig into a groundbreaking medieval silver mine revealed by a German sinkhole. 2026-09-11 The Sphinx, the Shroud of Turin, El Dorado, and other ancient mysteries. 2026-09-11 Open burial sites filled with secrets. Find powerful artifacts in a French rulers tomb, see what a tomb adorned with conch shells says about sacred ceremonies, and expose complex beliefs about animals and the afterlife in an Egyptian zoo graveyard. 2026-09-11 The technological race intensifies as superpowers use imported German scientists for rockets and nukes; high-stakes intelligence relies on spy balloons and planes over the North Pole. 2026-09-12