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14 of the deepest sinkholes on Earth
Live Science via Yahoo News· 10 months agoFrom China's Heavenly Pit, which stretches down 2,172 feet, to the Devil's Sinkhole in Texas that is home to three million bats — here are some of the...
Fascinating Places Where Tourists Aren't Welcome
Cheapism via AOL· 1 year agoWould you like to see inside of where the U.S. Treasury stores its gold? Too bad. Sadly some of the world's coolest places are off limits. Here are 22...