A giant concrete dome filled with radioactive dirt, smack dab in the Pacific Ocean [Modernruins]

A giant concrete dome filled with radioactive dirt, smack dab in the Pacific Ocean [Modernruins]: "

In 1958, the United States tested the 18-kiloton 'Cactus' nuclear device on Runit Island in the Pacific. 20 years later, Cactus' 350-foot-wide crater was filled with radioactive soil and covered with a 100,000-square-foot concrete dome. Worst vacation ever? More »

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