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An old stone wall of an ancient fortress against a background of a clear blue sky.
Fort of Villeneuve les Avignons
Hunedoara, Hunedoara, România - July 11, 2023: The Corvin Castle of Hunedoara in Romania
The Barbican is a fortified outpost once connected to the city walls and once a primary entrance to the old city. Krakow city in Poland was originally the capital of the country until 1956 but is now best known for its well-preserved medieval centre with its period architecture and spacious Rynek Glówny market square as well as the Jewish quarter and ghetto areas.
Ciechanow, Poland - June 8th, 2024 - Round tower at Castle of the Masovian Dukes
a gothic castle walls towers and battlements. union jack flying on far tower
Medieval architecture of fortified wall surrounding the Royal Alcázar of Seville,  Spain
​ Hunedoara, Transylvania, Romania – May 31, 2021: Construction details of the  Hunedoara Castle, also known a Corvin Castle or Hunyadi Castle in Hunedoara, Romania
ancient wall of stone in a otomann fortress
Citadel of Qaitbay in Alexandria,Egypt
An old stone wall of an ancient fortress against a background of a clear blue sky.
Old City Walls of Salzburg, Austria
Baba Vida medieval fortress in Vidin, Bulgaria. It consists of two concentric curtain walls and about nine towers of which three are preserved to their full medieval height.
The medieval fortress Baba Vida in Vidin, Bulgaria, Balkans, Europe.
Fortified christian monastery Manasija in the medieval walls. The Manasija Monastery also known as Resava, is a Serbian Orthodox monastery near Despotovac, UNESCO World Heritage Site
Vaduz Castle in Vaduz, Liechtenstein on an overcast day.
Royal Castle in Leczyca city - Poland
Low angle view of a historic clock tower in Regensburg, Bavaria, Germany. The stone structure stands against a clear blue sky, showcasing its architectural beauty.
View of medieval city walls in Trento city centre at Piazza Fiera (Fair Square) in a sunny day; Trentino-Alto Adige, Italy
Part of historical Byzantine wall In Istanbul. This photos was taken at sunset time. The light illuminates the wall very nicely and they look with three-dimensional effect.
Castle Palace in the shape of a quadrilateral that has cubes at the corners and square turrets on the wall. Inside, the Palacio de los Ponces is preserved, whose primitive construction dates back to the 13th century.
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The castle of Raabs an der Thaya, Waldviertel, Lower Austria
View of Quadrangular Mardakan Fortress in Azerbaijan (Böyük Mərdəkan qəsri)\n\nThe Quadrangular Mardakan Fortress or the Great Mardakan Castle (Azerbaijani: Dördkünc Mərdəkan qalası or Azerbaijani: Böyük Mərdəkan qəsri) is a historical and architectural monument located in the Mardakan settlement of the Khazar district in Baku. It is included by the Ministry of Culture and Tourism of Azerbaijan (currently - the Ministry of Culture of Azerbaijan) in the list of monuments of world importance. In 2001, along with other objects of the coastal defence of the Caspian Sea, it was included in the UNESCO World Heritage Reserve List.
Detail of the wall of the venetian (Koules) fortress at the seaside. Golden color of the stones during the late afternoon sunlight, bright blue sky. Heraklion, Crete, Greece.
Fort of San Servando, Toledo, Spain
UNESCO World Heritage castle Castelgrande at City of Bellinzona on a sunny morning. Photo taken September 11th, 2021, Bellinzona, Switzerland.
Belgrade, Serbia - November 15, 2023: Kalemegdan Fortress located alongside the Danube River in central Belgrade. Photo taken within the Kalemegdan Park and contains some old parts of the fort.
View to ancient wall and Trigoniu tower in Thessaloniki in Greece
Belgrade Fortress in Kalemegdan, Serbia
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