Крепости и валове в Първото бълагарско царство

08.05.2017
Fortress Валове Map
Връзка: https://bg.wikipedia.org/wiki/%D0%A4%D0%B0%D0%B9%D0%BB:%D0%9A%D1%80%D0%B5%D0%BF%D0%BE%D1%81%D1%82%D0%B8_%D0%B8_%D0%B2%D0%B0%D0%BB%D0%BE%D0%B2%D0%B5_%D0%B2_%D0%9F%D1%8A%D1%80%D0%B2%D0%BE%D1%82%D0%BE_%D0%B1%D1%8A%D0%BB%D0%B0%D0%B3%D0%B0%D1%80%D1%81%D0%BA%D0%BE_%D1%86%D0%B0%D1%80%D1%81%D1%82%D0%B2%D0%BE.jpg