Gråborg is a ruin and fortification that is the largest ruin of its kind. The building was gradually expanded and reached its greatest glory in the 12th century. century. It is assumed that it was a kind of shopping centre.
Gråborg is a ruin and fortification that is the largest ruin of its kind. The building was gradually expanded and reached its greatest glory in the 12th century. century. It is assumed that it was a kind of shopping centre.