Hidden beneath the city streets, a secret tunnel was discovered running far below the surface. Forgotten for decades, it reveals a side of the city few ever see. Structures like this often remain ...

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News of a brawl between police and worshippers on Monday over a secret underground tunnel found connected to a historic Brooklyn synagogue was picked up quickly on social media, with posts spreading ...

If you want an underground Michigan tour with real history, take this one, the tunnels alone are unforgettable.