Our Pick
Posted on @rawstates
Yellowstone, the first national park
1872
Wyoming, Montana and Idaho
Grastel · CC BY-SA 4.0 · Wikimedia Commons
Congress set aside two million acres before Wyoming was even a state, largely because the railroads wanted somewhere for tourists to go. It sits on a caldera that has erupted three times in two million years, and holds about half the world's geysers.
That was 1 of the hidden places.
Location: historic site
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