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Forget about that, I just learned there’s a salt mine under Detroit!
by rus20376 3mo ago
Forget about that, I just learned there’s a salt mine under Detroit!
- throw-the-towel 3mo agoThere's also one under Yerevan, Arnenia. Funnily, the altitude differences in the city are so large that the bottom of the mine is still higher above sea level than the city center.