Smithsonian Channel Architects and engineers build an eco-friendly convention center on Vancouver's waterfront, a lift bridge in Bordeaux and a cocoon-shaped skyscraper in Tokyo each with unique challenges like marine habitats and massive spans. 2026-04-23 Visiting the heart of history in the Dashur necropolis, where the first of the great pyramids was built; examining what a mini-scanner called a LiDAR reveals about this landmark's enduring mysteries. 2026-04-23 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. 2026-04-23 Meidum is the least-known of the pyramids of Egypt as it stretches skywards to resemble a castle keep. 2026-04-23 Visiting the heart of history in the Dashur necropolis, where the first of the great pyramids was built; examining what a mini-scanner called a LiDAR reveals about this landmark's enduring mysteries. 2026-04-23 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. 2026-04-23 Meidum is the least-known of the pyramids of Egypt as it stretches skywards to resemble a castle keep. 2026-04-23 Visiting the heart of history in the Dashur necropolis, where the first of the great pyramids was built; examining what a mini-scanner called a LiDAR reveals about this landmark's enduring mysteries. 2026-04-23 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. 2026-04-23 Meidum is the least-known of the pyramids of Egypt as it stretches skywards to resemble a castle keep. 2026-04-23 Investigate one of Egypt's oldest monuments to eternity: the Buried Pyramid of Sekhemkhet; explore a well-preserved underground tomb and view a mysterious sarcophagus during the first-ever on-camera exploration of this 4,500-year-old sacred place. 2026-04-23 Visiting the heart of history in the Dashur necropolis, where the first of the great pyramids was built; examining what a mini-scanner called a LiDAR reveals about this landmark's enduring mysteries. 2026-04-23 Takes an unprecedented look inside the secret chambers of the Great Pyramid of Giza, the only one of the Seven Wonders of the Ancient World still standing, and see what they reveal about the pyramid's origins. 2026-04-23 Takes a look inside the Pyramid of Menkaure and its unfinished bicolor monument, including a chamber made entirely of graphite and a sarcophagus buried at sea. 2026-04-23 Exceptional texts are inscribed on the walls of an obscure pyramid; experts scan the the funerary chamber of Egypt's longest-reigning pharaoh to try to uncover its mysteries. 2026-04-23 The Black Pyramid is a decaying brick-and-clay structure that contains an elaborate network of tunnels filled with ancient artifacts; Egyptologists use a mini-laser to uncover the mysteries contained within. 2026-04-23 Investigate one of Egypt's oldest monuments to eternity: the Buried Pyramid of Sekhemkhet; explore a well-preserved underground tomb and view a mysterious sarcophagus during the first-ever on-camera exploration of this 4,500-year-old sacred place. 2026-04-23 Visiting the heart of history in the Dashur necropolis, where the first of the great pyramids was built; examining what a mini-scanner called a LiDAR reveals about this landmark's enduring mysteries. 2026-04-23 Takes an unprecedented look inside the secret chambers of the Great Pyramid of Giza, the only one of the Seven Wonders of the Ancient World still standing, and see what they reveal about the pyramid's origins. 2026-04-23 Takes a look inside the Pyramid of Menkaure and its unfinished bicolor monument, including a chamber made entirely of graphite and a sarcophagus buried at sea. 2026-04-23 Exceptional texts are inscribed on the walls of an obscure pyramid; experts scan the the funerary chamber of Egypt's longest-reigning pharaoh to try to uncover its mysteries. 2026-04-23 The Black Pyramid is a decaying brick-and-clay structure that contains an elaborate network of tunnels filled with ancient artifacts; Egyptologists use a mini-laser to uncover the mysteries contained within. 2026-04-23 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. 2026-04-23 Meidum is the least-known of the pyramids of Egypt as it stretches skywards to resemble a castle keep. 2026-04-23 An archaeological revolution has been underway for 15 years, driven by technology; from the rise of the first empire to the creation of the megalithic site of Newgrange, new technologies are revealing previously unknown chapters of antiquity. 2026-04-24 Puzzle over history-making structures and artifacts. Search for clues about civilization's origins in Turkey's Göbekli Tepe, visit a German statue that reveals symbolic thought, and witness the brutality of colonization in a Mexican skull tower. 2026-04-24 Join the manhunt for three inmates who escaped Alcatraz in 1962. Follow the trail of pirate Henry Avery after he pulled off a massive heist in 1695, then stalk Axeman of New Orleans, a serial killer who taunted police but spared jazz lovers. 2026-04-24 An archaeological revolution has been underway for 15 years, driven by technology; from the rise of the first empire to the creation of the megalithic site of Newgrange, new technologies are revealing previously unknown chapters of antiquity. 2026-04-24 Puzzle over history-making structures and artifacts. Search for clues about civilization's origins in Turkey's Göbekli Tepe, visit a German statue that reveals symbolic thought, and witness the brutality of colonization in a Mexican skull tower. 2026-04-24 Join the manhunt for three inmates who escaped Alcatraz in 1962. Follow the trail of pirate Henry Avery after he pulled off a massive heist in 1695, then stalk Axeman of New Orleans, a serial killer who taunted police but spared jazz lovers. 2026-04-24 An archaeological revolution has been underway for 15 years, driven by technology; from the rise of the first empire to the creation of the megalithic site of Newgrange, new technologies are revealing previously unknown chapters of antiquity. 2026-04-24 Puzzle over history-making structures and artifacts. Search for clues about civilization's origins in Turkey's Göbekli Tepe, visit a German statue that reveals symbolic thought, and witness the brutality of colonization in a Mexican skull tower. 2026-04-24 Join the manhunt for three inmates who escaped Alcatraz in 1962. Follow the trail of pirate Henry Avery after he pulled off a massive heist in 1695, then stalk Axeman of New Orleans, a serial killer who taunted police but spared jazz lovers. 2026-04-24 An archaeological revolution has been underway for 15 years, driven by technology; from the rise of the first empire to the creation of the megalithic site of Newgrange, new technologies are revealing previously unknown chapters of antiquity. 2026-04-24 German U-boats roam the seas in packs, threatening to starve Britain into submission during World War II. 2026-04-24 Great Britain faces losing its battle for survival against German U-boats until a new source of intelligence turns the tide in 1941. 2026-04-24 The German U-boat hunters become the hunted as advances in technology turn the tide in the Allies' favor. 2026-04-24 Navigating the narrow, deep fjords that lead to Narvik, Norway, where German and British forces faced off in April 1940; repeated torpedo failures threatened to sink the mission and leave Hitler's invading troops exposed and vulnerable. 2026-04-24 Learning why a clash over Nazi ideology wrecked a bright U-boat commander's career. 2026-04-24 Retracing the steps of a German U-boat that's willing to do anything to replace its dwindling fuel and food stores, and get back to port; examining how the crew, plagued by scurvy, turns the tables on the US submarines that try to ram their ship. 2026-04-24 German U-boats roam the seas in packs, threatening to starve Britain into submission during World War II. 2026-04-24 Great Britain faces losing its battle for survival against German U-boats until a new source of intelligence turns the tide in 1941. 2026-04-24 The German U-boat hunters become the hunted as advances in technology turn the tide in the Allies' favor. 2026-04-24 A different view of the events in the Arctic during World War II, with unknown details; a focus on the struggle of the great powers for control of the area and its natural resources. 2026-04-24 Learning why a clash over Nazi ideology wrecked a bright U-boat commander's career. 2026-04-24 An archaeological revolution has been underway for 15 years, driven by technology; from the rise of the first empire to the creation of the megalithic site of Newgrange, new technologies are revealing previously unknown chapters of antiquity. 2026-04-24 Puzzle over history-making structures and artifacts. Search for clues about civilization's origins in Turkey's Göbekli Tepe, visit a German statue that reveals symbolic thought, and witness the brutality of colonization in a Mexican skull tower. 2026-04-24 Join the manhunt for three inmates who escaped Alcatraz in 1962. Follow the trail of pirate Henry Avery after he pulled off a massive heist in 1695, then stalk Axeman of New Orleans, a serial killer who taunted police but spared jazz lovers. 2026-04-24 Retracing the steps of a German U-boat that's willing to do anything to replace its dwindling fuel and food stores, and get back to port; examining how the crew, plagued by scurvy, turns the tables on the US submarines that try to ram their ship. 2026-04-25