Life Below Ground
Some of the coolest spots you’ve never heard of may lie right beneath your feet. From one-of-a-kind caves to commuter walkways to “underground cities” from the early 1900s, there are many places to find adventure below ground. Some of these are free to explore, while other sites collect an entrance fee. Have you been to one of these fascinating subterranean spaces? Please share your experience in the comments.
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