Hillforts in Sweden

300px|thumb|Aerial view from the 1970s. Eketorp is an Iron Age fort, located in southeastern Öland, Sweden, and extensively reconstructed and enlarged in the Middle Ages. Throughout the ages the fortification has served a variety of somewhat differing uses: from defensive ringfort, to medieval safe haven and thence a cavalry garrison. In the 20th century it was further reconstructed to become a heavily visited tourist site and a location for re-enactment of medieval battles. Eketorp is the only one of the 19 known prehistoric fortifications on Öland that has been completely excavated, yielding

Torsburgen, Tors borg or þors borg ("Thor's fort/castle") are the remains of an ancient hillfort in Kräklingbo on the Swedish island of Gotland in the Baltic Sea. The fort is approximately , was constructed in the 1st-4th century and in use until the 12th century. Situated on a plateau hill it is protected by high cliffs and wall sections, almost long in total. The fort is featured in the Gutasaga. The plateau is also a nature reserve.

Grogarnsberget or Grogarnsberg (lit. "The Grogarn Mountain" more appropriate "Grogarn Hill") is a plateau hill on the Östergarn coast, on the Swedish island of Gotland. On the hill are the remains of former hillfort, the second largest on Gotland and the fourth largest in Scandinavia.

ruined castle in Sweden