Where is Fortress?

Fortress - Dimitrovgrad Fortress - Woden Fortress - Dobrich Fortress - Kaleto Fortress in Košnica Fortress - Hotel Armira in Ivaylovgrad Fortress - Zelenikovo Fortress - Michkovtsi Fortress - Brod Fortress - Sredno-Gradiste Fortress - Regional Historical Museum in Gabrovo Fortress - Geo Milev House Museum Fortress - Shipka Memorial Fortress - Chernogorovo Fortress - Uzundzhovo Fortress - Chernokonevo Fortress - Nekhory Fortress - Planinzi Fortress - Kupen Fortress - Telish Fortress - King's Spring Fortress - Pedikes Katascinos Fortress - Nederlands Fortress - Golden-Niva Fortress - Gorsko Fortress - Potami Fortress - Boychovtsi Fortress - Arnautito Fortress - Sharani Fortress - Vitina Fortress - Chekanzi Fortress - Yunatsi