Moaning Caverns in Vallecito, California
Hidden beneath the Sierra Nevada foothills of California, Moaning Caverns is an enormous limestone cave with a history as unusual as its name. The cavern’s main chamber is so vast that the Statue of Liberty could reportedly fit inside it. One of its most striking features is a 165-foot steel spiral staircase that winds dramatically down into the cavern. Built in 1922 using steel salvaged from a…
We haven't written up this one. Atlas Obscura has the full story — the link below goes straight to it.
