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City walls of Istanbul after partial restoration
Skopje, Republic of North Macedonia: Skopje Fortress,  situated on the highest point in the city overlooking the Vardar River - The fortress is thought to have been built during the rule of emperor Justinian I and constructed further during the 10th and 11th centuries over the remains of emperor Justinian's Byzantine fortress.
The Roman Walls of Avila a sunny summer day. Spain
Despot's Tower, part of Belgrade Fortress in Belgrade, Serbia.
Medieval town of Carcassonne at sunset
Ogrodzieniec Castle - ruined medieval castle in Podzamcze, near Ogrodzieniec in the semi-mountainous highland region called the Polish Jura, Poland
City walls of Avila in Spain. Panoramic view of landmark
Vyborg, Leningrad Oblast, Russia - June 06, 2023: Part of fortress in Vyborg of 11 centuries. Vyborg Castle exterior on a sunny day in summer. Old stone wall with windows, clear blue sky
Ponferrada, Castile and Leon, Spain -September 25, 2014: Façade of the 12th century Templar Castle (Castillo de los Templarios)
Wall of castle ruins, stone wall texture . \nMedieval castle ruins, old European architecture, ruined window of an old castle made of stone
Castle ruins in Rabsztyn in Poland in foggy weather. The facility near Olkusz was partially rebuilt and made available on the Eagle's Nests trail on the Krakow-Czestochowa Upland.
Castle of Erzurum - Erzurum, Turkey - August 30 2019:  Exterior view of Tray Minaret or Clock tower and castle wall.
Elvas, Portugal - March 3, 3019 : Elvas city castle with garden on the outside in Alentejo, Portugal
San Gimignano is a commune in the province of Siena in the Tuscany region of central Italy and a well-preserved medieval town surrounded by walls.\nIn the place called \
Ruins of the old castle in the city of Satanov.
Podgrodzie, Poland - August 19,2012:Ogrodzieniec Castle - ruined medieval castle in the semi-mountainous highland region called the Polish Jura, Poland
Old medieval fortification Golubac, Serbia in September 2009, before reconstruction
Drone view of Gjirokaster in Albania
Carcassonn, France – June 30, 2022: The low-angle view of the old walls of Cite de Carcassonne before the cloudy skyline
Carcassonne, France - December 08, 2017: View of the Chateau Comtal of the Cite of Carcassonne, France.
Veliko Tarnovo, Bulgaria - September 23, 2023: View of the Tsarevets fortress, with visitors, in Veliko Tarnovo, Bulgaria
Ancient city wall of Pingyao in China.
Inside the Catsle ruins of Hohenbaden Castle in the Black forest - Baden Baden Germany
Ghent, Belgium - December 28, 2021: View of the wall of the medieval castle of Het Gravensteen, in the historic center of Ghent.
Mourao castle ruin interior historic building in Alentejo, Portugal
Wall and winesellar of Svetitskhoveli Cathedral in Mtskheta in winter. Georgia
Majestic medieval Andlau castle, Alsace region in France
The Castello Svevo (1132) is a castle in the Apulian city of Bari, Italy
Ivangorod Fortress Ruins. The round corner tower with loopholes.
Lourdes, France - July 18, 2022: Lourdes City Panorama in Summer with Château fort de Lourdes Fort Drone XXL City Panorama. Lourdes is a  World famous Pilgrim destination., a small market town lying in the foothills of the Pyrenees, famous for the Maria apparitions of Our Lady of Lourdes. Château fort de Lourdes, Lourdes, Lourdes,  Hautes-Pyrenees, France, Europe
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