Carlstens Fästning
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Fortress in Sweden
Carlsten is a stone fortress located at Marstrand, on the western coast of Sweden. The fortress was built on the orders of King Carl X of Sweden following the Treaty of Roskilde, 1658 to protect the newly acquired province of Bohuslän from hostile attacks.
Address: Carlstens fästning, 442 67 Marstrand, Sweden
Phone: +46 303 611 67