Why it's incredible: The cave is so deep, the world's tallest building could fit inside it. The Hranice Abyss — or "Hranická propast," in Czech — is the deepest known freshwater cave in the world.
EDWARDS COUNTY, Texas – Special thanks to Geary Schindel, his volunteer crew of climbers, researchers and Texas Parks and Wildlife for this incredible experience. Right place, right time. That’s how I ...
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