Smithsonian HD Network A soaring tour over Southern California explores the stunning beaches, vast deserts, sprawling city and unique culture. 2026-08-08 A coast-to-coast tour over America's man-made structures, old and new; the Statue of Liberty and the Golden Gate Bridge. 2026-08-08 An aerial tour over Kentucky reveals a state of racetracks, country music highways, bourbon distilleries and a history of feuds and traditions. 2026-08-08 A sky-high tour over Iowa explores its vast stretches of farmland, covered bridges and evolution from wilderness to statehood. 2026-08-08 A series of nuclear bomb tests conducted outside Las Vegas in the 1950s and early '60s. 2026-08-08 Personal accounts of the atomic attack on Hiroshima in 1945; the comprehensive story of the bombing of Hiroshima, from those who built it, dropped it, and survived it. 2026-08-09 Recently declassified U.S. government documents reveal hidden secrets about the nuclear arms race. 2026-08-09 An inside look at the Manned Orbiting Laboratory, a top-secret military spy station developed during the Cold War. 2026-08-09 During the Cold War, the U.S. government partners with Hollywood to create films for scientific research, military training and propaganda. 2026-08-09 Personal accounts of the atomic attack on Hiroshima in 1945; the comprehensive story of the bombing of Hiroshima, from those who built it, dropped it, and survived it. 2026-08-09 When a DC-8 cargo jet crashes on approach to a U.S. naval base in Guantánamo, investigators wonder if Cuba played a role. 2026-08-09 Facing a cascade of failures and a fire on board, a turboprop is just seconds from landing when it flips over and crashes. 2026-08-09 United Airlines Flight 718 and Trans World Airlines Flight 2 collide midair over the Grand Canyon in Arizona, killing all 128 people on both aircraft in 1956. 2026-08-09 On 1 June 2009, Air France Flight 447 stalls and crashes into the Atlantic Ocean while flying through a thunderstorm, killing all 228 people on board. 2026-08-09 The captain of a Navy cruiser must quickly determine if an approaching plane is friendly. 2026-08-09 An aerial journey across Montana celebrates the Treasure State's adventure-filled history while showcasing its sprawling farms and rugged terrain. 2026-08-09 A sky-high tour over Minnesota reveals the state's ancient, glacial landscapes and tells the stories of the pioneers who helped build the nation. 2026-08-09 Viewing Oklahoma from the sky reveals a state filled with tall-grass prairies and man-made wonders; the Dust Bowl, Tornado Alley and buffalo-filled plains; it also shows a history steeped in tragedy and devastation. 2026-08-09 An aerial journey over Ohio showcases the Buckeye State's autumnal vistas, majestic rivers, epic skyscrapers and battlegrounds. 2026-08-09 A high-flying tour over Illinois; the Windy City, prairies and rivers; the state's dramatic history of great fires, crime and historic battles; Chicago's unique skyscrapers and the Lincoln Tomb. 2026-08-09 Home to some of America's highest mountains; Mount St. Helens. 2026-08-09 An aerial tour over America's Great Plains tracks the prairies, farms, oilfields and wildlife. 2026-08-09 Vast cotton fields, Gulf coast beaches; famous Civil Rights marches; NASCAR's most dangerous track; steel factories. 2026-08-09 White sand beaches; Blue Ridge Mountains; Charleston's Rainbow Row. 2026-08-09 A cross-country aerial journey over America's most majestic and unique roadside attractions. 2026-08-09 An aerial tour over New England captures its beauty while celebrating its rich history; from the Massachusetts harbors, where Americans rebelled against the British, to the autumn colors that blanket the mountains of Vermont. 2026-08-09 The Empire State of the South; ancient Mound builders to the Cherokee Indians. 2026-08-09 In a rush to complete their flights, three different flight crews skip key procedures, ignore signs of danger and make deadly decisions. 2026-08-09 The pairing of a domineering pilot and an inexperienced first officer has deadly consequences in northern Minnesota. 2026-08-09 After a Chinese airplane lands at a top-secret US Air Force base, the search is on for the cause of a deadly rollercoaster ride in the sky. 2026-08-10