Why San Francisco’s Treasure Island is Radioactive

Why San Francisco’s Treasure Island is Radioactive

In the middle of San Francisco Bay sits an island that did not even exist a century ago. Built from dredged sand and rock in the 1930s, Treasure Island was created as the dazzling home of the 1939 Golden Gate International Exposition — a glowing Art Deco “Magic City” meant to celebrate the Bay Bridge, the Golden Gate Bridge, and California’s future. But after the fair closed and World War II began, that dream was erased almost overnight. In this episode, we uncover how Treasure Island transformed from a world’s fair wonder into a major U.S. Navy base tied to radioactive training, contaminated ships from Operation Crossroads, and decades of secrecy. From flying boats and Pacifica statues to nuclear cleanup and modern redevelopment, this is the remarkable hidden history of San Francisco’s Treasure Island. #TreasureIsland #SanFrancisco #hiddenhistory Learn more about your ad choices. Visit megaphone.fm/adchoices

Episoder(564)

Why NYC Built Skyscraper-Sized Sewer Tanks

Why NYC Built Skyscraper-Sized Sewer Tanks

Beneath New York City lies a 7,500-mile labyrinth that processes billions of gallons of waste daily. This underground network, built over two centuries, includes forgotten tunnels, Civil War-era infra...

1 Apr 14min

Why Route 66’s Bridges Are Collapsing

Why Route 66’s Bridges Are Collapsing

Across the American heartland, historic bridges line the old alignment of U.S. Route 66, many abandoned for decades and at risk of collapse. This episode explores how this iconic highway became a grav...

31 Mar 13min

Why Chicago's Worst Public Housing Project became a National Disgrace

Why Chicago's Worst Public Housing Project became a National Disgrace

Cabrini-Green, once a nationwide symbol of crime and urban decay, has seen gradual demolition over the past two decades. Originally home to 15,000 residents, the complex has transitioned into new reta...

29 Mar 19min

Why Coal Breakers were Horrific Places to Work (Coal Breakers Explained)

Why Coal Breakers were Horrific Places to Work (Coal Breakers Explained)

Coal breakers were essential machines in coal mines, responsible for breaking large chunks of coal into smaller pieces. They were the heart of the operation, despite being loud and dirty, requiring si...

28 Mar 9min

Why Hundreds of New York Ships were Abandoned on Staten Island

Why Hundreds of New York Ships were Abandoned on Staten Island

The Staten Island Boat Graveyard, located at 2453 Arthur Kill Road in Rossville, has roots dating back to the 1930s and has been known as the Witte Marine Scrap Yard and Arthur Kill Boat Yard. Now ref...

27 Mar 18min

Why America's Battleship Graveyard is Forgotten (Philadelphia's Abandoned Ships) - IT'S HISTORY

Why America's Battleship Graveyard is Forgotten (Philadelphia's Abandoned Ships) - IT'S HISTORY

Explore the battleship graveyard outside the Philadelphia International Airport, featuring storied vessels that once served in the United States Navy. This video highlights the fates of legendary ship...

26 Mar 24min

What’s 1,000 Feet Underground in a Medieval Salt Mine?

What’s 1,000 Feet Underground in a Medieval Salt Mine?

Buried nearly 1,000 feet beneath southern Poland lies the Bochnia Salt Mine, one of Europe's oldest salt mines and a UNESCO World Heritage site with a history spanning nearly 1,000 years. This sprawli...

25 Mar 28min

Why Seattle’s Floating Highway Sank

Why Seattle’s Floating Highway Sank

On November 25, 1990, a section of the Lacey V. Murrow Floating Bridge in Seattle collapsed and sank into Lake Washington, an event witnessed live by thousands. The bridge, an essential transportation...

24 Mar 17min

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