Jachymov, Germany. 08th Aug, 2019. Kilometre-long tunnels connect the underground sources of radon-containing water in the mine Unity in the Czech spa and mining town. The mine is normally not accessible to visitors. First silver was mined here, then uranium. Today, radioactive water is extracted here for spa operation. The Montan region Erzgebirge has been recognised as part of the world cultural heritage since July 2019. (to dpa KORR) Credit: Michael Heitmann/dpa/Alamy Live News

- Image ID: WCE7TJ
Jachymov, Germany. 08th Aug, 2019. Kilometre-long tunnels connect the underground sources of radon-containing water in the mine Unity in the Czech spa and mining town. The mine is normally not accessible to visitors. First silver was mined here, then uranium. Today, radioactive water is extracted here for spa operation. The Montan region Erzgebirge has been recognised as part of the world cultural heritage since July 2019. (to dpa KORR) Credit: Michael Heitmann/dpa/Alamy Live News
dpa picture alliance / Alamy Stock Photo
Image ID: WCE7TJ

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