Keywords: Roman-fortress-Hissarya-Walls.jpg Южните стени на имската к епост в Хиса я Бълга ия The southern walls of the Roman fortress in Hissarya Bulgaria Own 2006-08-26 Vassia Atanassova - Spiritia Public domain content created by the uploader Hissarya Fortress Hissarya City walls in Bulgaria |