erdstalls tunnels

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    The Enigmatic Erdstall Tunnels of Europe: Purpose – Unknown

    An erdstall is a type of tunnel that is found throughout Europe, mainly in the south-eastern German state of Bavaria and Austria. Erdstalls are thought to have been created during the Middle Ages, though some have claimed that these tunnels date to the Stone Age. At the moment, nobody is entirely certain as to why such features were made in…

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