Smithsonian Channel A member of the Osage Nation investigates the series of murders and unexplained deaths that struck the oil-rich tribe in the 1920s. 2026-09-02 In less than 200 years, the Aztecs rose from nomadic origins to build the powerful empire of Tenochtitlan. Combining archaeology and stunning 3D reconstructions, this series reveals the rise and fall of a remarkable civilization. 2026-09-02 Dictators may appear omnipotent, but their position depends largely on a network of individuals who benefit from their rule, and their support does not come cheap. 2026-09-02 A member of the Osage Nation investigates the series of murders and unexplained deaths that struck the oil-rich tribe in the 1920s. 2026-09-02 In less than 200 years, the Aztecs rose from nomadic origins to build the powerful empire of Tenochtitlan. Combining archaeology and stunning 3D reconstructions, this series reveals the rise and fall of a remarkable civilization. 2026-09-02 Dictators may appear omnipotent, but their position depends largely on a network of individuals who benefit from their rule, and their support does not come cheap. 2026-09-02 A member of the Osage Nation investigates the series of murders and unexplained deaths that struck the oil-rich tribe in the 1920s. 2026-09-02 In less than 200 years, the Aztecs rose from nomadic origins to build the powerful empire of Tenochtitlan. Combining archaeology and stunning 3D reconstructions, this series reveals the rise and fall of a remarkable civilization. 2026-09-02 Exploring behind-the-scenes of design and construction of revolutionary buildings in Spain, New York and a university campus in Florida. 2026-09-02 Host Mike Davidson goes to the remote Atacama Desert in Chile; at observatory ALMA he works alongside the expert team as they repair some of the world's biggest antennas. 2026-09-02 A journey along Ireland's longest river, the Shannon, through an emerald green landscape of rolling hills and sparkling waters; how Vikings, monks and kings have all made their mark. 2026-09-02 Zoom in on some otherworldly sights; spot a giant glacier on the Red Planet, let the milky seas off the coast of Java bathe your vision, ponder a huge hexagon floating above Saturn and take a spin around a doughnut-shaped lake in Saskatchewan. 2026-09-02 Responding to an emergency call, Northstar marine sets out to salvage a sunken tug in the Delaware Bay; following the devastation caused by Hurricane Sally, Capt. Chris Ward and his crew work to salvage sunken sailboats and wrecked powerboats. 2026-09-02 A journey along Ireland's longest river, the Shannon, through an emerald green landscape of rolling hills and sparkling waters; how Vikings, monks and kings have all made their mark. 2026-09-02 Zoom in on some otherworldly sights; spot a giant glacier on the Red Planet, let the milky seas off the coast of Java bathe your vision, ponder a huge hexagon floating above Saturn and take a spin around a doughnut-shaped lake in Saskatchewan. 2026-09-02 Responding to an emergency call, Northstar marine sets out to salvage a sunken tug in the Delaware Bay; following the devastation caused by Hurricane Sally, Capt. Chris Ward and his crew work to salvage sunken sailboats and wrecked powerboats. 2026-09-02 Visiting the Hearst Tower in Manhattan and Jewel Changi Airport in Singapore to understand how they were built; covering how designers and engineers attempt to create a museum worthy of Salvador Dalí in Florida. 2026-09-02 Diving into retrofits on the world's only underwater habitat, where NASA astronauts train for space missions; Mike joins a crack repair team who breathe new life into this oceanic environment after a global pandemic shut it down. 2026-09-02 Unveils the Cold War as a conflict of spies, not soldiers, involving constant risk, subterfuge, and tools like miniature cameras, coded messages, stealth and poisoned umbrellas. 2026-09-02 Dictators may appear omnipotent, but their position depends largely on a network of individuals who benefit from their rule, and their support does not come cheap. 2026-09-02 A member of the Osage Nation investigates the series of murders and unexplained deaths that struck the oil-rich tribe in the 1920s. 2026-09-02 A member of the Osage Nation investigates the series of murders and unexplained deaths that struck the oil-rich tribe in the 1920s. 2026-09-02 In less than 200 years, the Aztecs rose from nomadic origins to build the powerful empire of Tenochtitlan. Combining archaeology and stunning 3D reconstructions, this series reveals the rise and fall of a remarkable civilization. 2026-09-02 Dictators may appear omnipotent, but their position depends largely on a network of individuals who benefit from their rule, and their support does not come cheap. 2026-09-02 Follow the meteoric rise of the Macedonian conqueror who seized Egypt and built an empire that stretched from Europe to Asia; find out how founding the city of Alexandria and becoming a pharaoh transformed Alexander's life before his death at age 32. 2026-09-03 Explore three discoveries that change what we know about magic and superstition; delve into a Polish vampire grave, open a UK witch bottle used to ward off evil, and see if alien-like skulls in Mexico were shaped by humans or otherworldly beings. 2026-09-03 The Pyramid of Khufu is the only one of the Seven Wonders of the Ancient World which can still be seen in its original state. 2026-09-03 Follow the meteoric rise of the Macedonian conqueror who seized Egypt and built an empire that stretched from Europe to Asia; find out how founding the city of Alexandria and becoming a pharaoh transformed Alexander's life before his death at age 32. 2026-09-03 Explore three discoveries that change what we know about magic and superstition; delve into a Polish vampire grave, open a UK witch bottle used to ward off evil, and see if alien-like skulls in Mexico were shaped by humans or otherworldly beings. 2026-09-03 The Pyramid of Khufu is the only one of the Seven Wonders of the Ancient World which can still be seen in its original state. 2026-09-03 Follow the meteoric rise of the Macedonian conqueror who seized Egypt and built an empire that stretched from Europe to Asia; find out how founding the city of Alexandria and becoming a pharaoh transformed Alexander's life before his death at age 32. 2026-09-03 Explore three discoveries that change what we know about magic and superstition; delve into a Polish vampire grave, open a UK witch bottle used to ward off evil, and see if alien-like skulls in Mexico were shaped by humans or otherworldly beings. 2026-09-03 Visiting the Hearst Tower in Manhattan and Jewel Changi Airport in Singapore to understand how they were built; covering how designers and engineers attempt to create a museum worthy of Salvador Dalí in Florida. 2026-09-03 Diving into retrofits on the world's only underwater habitat, where NASA astronauts train for space missions; Mike joins a crack repair team who breathe new life into this oceanic environment after a global pandemic shut it down. 2026-09-03 The journey down the attraction-packed Niagara River is filled with adventure and beauty; navigating the fascinating history and engineering of this border river between Canada and the United States, arriving at the world-famous Niagara Falls. 2026-09-03 Explores strongholds abandoned by their architects; a lost city in the Amazon jungle; a desert fortress made by humanity's most notorious empire; explores a city of identical castles; examines a Greek isle's bloody history from the air. 2026-09-03 A mysterious object is raised from the depths of the ocean; a stranded speedboat; an elite crew works to salvage America's biggest shipwreck before hurricane season. 2026-09-03 The journey down the attraction-packed Niagara River is filled with adventure and beauty; navigating the fascinating history and engineering of this border river between Canada and the United States, arriving at the world-famous Niagara Falls. 2026-09-03 Explores strongholds abandoned by their architects; a lost city in the Amazon jungle; a desert fortress made by humanity's most notorious empire; explores a city of identical castles; examines a Greek isle's bloody history from the air. 2026-09-03 A mysterious object is raised from the depths of the ocean; a stranded speedboat; an elite crew works to salvage America's biggest shipwreck before hurricane season. 2026-09-03 Traveling from Canada to Belgium to the Southern U.S. to examine an eye-popping school, museum and railway station and reveal how they were built. 2026-09-03 Mike joins the U.S. Marines' Heavy Haulers helicopter squadron and gets inside their battle to keep a fleet of souped-up Sikorsky CH-53E Super Stallion choppers flying as they prepare for intense war games in the desert and mountains. 2026-09-03 During World War II, the B-17 became a formidable fortress of the skies; uncover the technological and strategic innovations that made the B-17 a key to D-Day success, and later, Allied victory. 2026-09-03 Valentine's Day delays loom when a squadron of F-22 makes an unexpected landing; high winds threaten a helicopter's 600-lb sling load; Aviators come to the rescue of a village without water. 2026-09-03 Southern Mexico stretches from Yucatán's crystal-clear cenotes to the fertile land of the Oaxaca Valley; Maya and Zapotec traditions live through gastronomy and art; history is ever present in ancient pyramids and architecture. 2026-09-03 Follow the meteoric rise of the Macedonian conqueror who seized Egypt and built an empire that stretched from Europe to Asia; find out how founding the city of Alexandria and becoming a pharaoh transformed Alexander's life before his death at age 32. 2026-09-03 Explore three discoveries that change what we know about magic and superstition; delve into a Polish vampire grave, open a UK witch bottle used to ward off evil, and see if alien-like skulls in Mexico were shaped by humans or otherworldly beings. 2026-09-03 The Pyramid of Khufu is the only one of the Seven Wonders of the Ancient World which can still be seen in its original state. 2026-09-03 Unlock the secrets of Newgrange, a 5,000-year-old Irish tomb aligned with the winter solstice sun; analyze DNA evidence that reveals a powerful, incestuous dynastic bloodline and suggests that this monument was built to honor a lost ruling class. 2026-09-04