Valjala hill fort stands as one of Estonia's most important archaeological sites, situated on the island of Saaremaa in Saare County. Established in the 12th century, this massive ringfort functioned as the principal Oeselian stronghold until its pivotal surrender in 1227, which finalized the crusader conquest of Estonia. The fortress fell during a legendary siege orchestrated by the Livonian Brothers of the Sword, who led an army of 20,000 across frozen sea to overcome the defenders. Following capitulation, a stone chapel was erected approximately 1 km northwest of the stronghold, marking the beginning of Estonia's sacred architectural heritage. The well-preserved round stone wall continues to dominate the landscape, offering visitors insight into medieval Baltic military fortifications.
