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

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Why Niagara Falls Was Turned Off

Why Niagara Falls Was Turned Off

In 1969, engineers performed the unprecedented act of turning off Niagara Falls, leaving the American Falls as a dry cliff face for several months. This episode explores the surprising findings uncove...

5 Huhti 16min

New York's Most Disturbing Island | The History of Rikers Jail

New York's Most Disturbing Island | The History of Rikers Jail

Delve into the history of Rikers Island, the notorious jail complex in New York City. This video explores the origins of Rikers Island as a jail, its growth from a small facility to an overcrowded com...

4 Huhti 19min

Why There’s an Abandoned Mansion Beneath the Bay Bridge

Why There’s an Abandoned Mansion Beneath the Bay Bridge

Every day, thousands of drivers cross the San Francisco-Oakland Bay Bridge without realizing they are passing over the abandoned Nimitz House on Yerba Buena Island. This residence was once home to Adm...

3 Huhti 18min

Why Pacifica California is Falling into the Sea

Why Pacifica California is Falling into the Sea

Perched along the cliffs just south of San Francisco, Pacifica, California, was built on a dream of ocean views and quiet living. However, this dream conceals a dangerous reality. Developers initially...

2 Huhti 13min

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 Huhti 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 Maalis 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 Maalis 19min

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