Drain the Oceans: Submerged Secrets of America | MEGA EPISODE | National Geographic

Chicago: Chicago’s extraordinary past emerges from the waters of Lake Michigan. New York City: Submerged shipwrecks and subterranean secrets reveal the story of New York City’s rise. Hollywood: Hollywood's surprising hidden history lies buried beneath the sea and sand. The Wild West: What was real life like in the Wild West, and who was left out of the story? Explore the World with National Geographic subscriptions: ➡ Subscribe: ➡ Get more Nat Geo Full Episodes: ➡ Get more Nat Geo Wild Full Episodes: And check out more National Geographic series and specials here: ➡ Disney Plus: ➡ Hulu: ➡ NGTV app: ➡ ABC app: Check out Na