
Karaköy Underground Mosque is a historic mosque located in the Beyoğlu district of Istanbul, near the Karaköy ferry pier. This mosque stands out among Istanbul’s other mosques due to its unique construction below ground level. It is recognized as one of the important religious structures of both Istanbul and the Ottoman Empire, standing out both as a place of worship and for its historical and cultural significance. History and Transformation The site of the Karaköy Underground Mosque correspond
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Yılan Kale (in some sources Yılankale) is a historical fortress located on a high hill dominating the Ceyhan Plain in the Ceyhan district of Adana, Türkiye. The structure was built during the Middle Ages as a strategic settlement serving the defense of the Çukurova region and is considered part of the region’s historical defense system alongside other significant fortifications. T.C. Kültür ve Turizm Bakanlığı. Yılan Kalesi – Adana. Kültür Portalı. Erişim tarihi: 25 Aralık 2025. https://www.kult
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