Joachimsthal

 Joachimsthal  is a small town in the district of Barnim, in Brandenburg, Germany. It is situated within the Schorfheide-Chorin Biosphere Reserve on the isthmus between the lakes Grimnitzsee in the north and Werbellinsee in the south, about 17 km northwest of the district's capital Eberswalde and 55 km northeast of the Berlin city centre. The municipality is the administrative seat of the Amt Joachimsthal .
Joachimsthal was founded in 1601 by Elector Joachim III Frederick of Brandenburg at the foot of medieval Grimnitz Castle and received town privileges in 1604. The Elector had a glass foundry erected and in 1607 established a boarding school, the Joachimsthalsches Gymnasium, that was relocated to Berlin after its devastation in 1636 during the Thirty Years' War. After a blaze in 1814, the church and several houses were rebuilt according to plans by Karl Friedrich Schinkel.

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