Fortifications of Gothenburg were initially embankments along the newly dug city moat in
Gothenburg, Sweden. They were built to defend Gothenburg which was Sweden's only direct access to the North Sea and Atlantic Ocean.
Wikipedia https://en.wikipedia.org/wiki/Fortifications_of_Gothenburg
Address 26 Västra Hamngatan, Göteborg 41117, Sweden
Coordinates 57°42'6.765" N 11°57'58.017" E