The Carolus Rex bastion

The Carolus Rex bastion from the 17th century is the only one preserved of a total of 13 bastions that were part of the moat around Gothenburg. A bastion is a pointed defensive structure that forms a projecting part of the fortress rampart and, through its pointed shapes, can eliminate blind spots along the fortress walls. Carolus Rex can be found at the Esperantoplatsen at Kungshöjd, and sometimes guided tours of the bastion are held which can be booked here.