Anadoluhisarı, known historically as Güzelce Hisar is a medieval Ottoman fortress located in Istanbul, Turkey on the Anatolian (Asian) side of the Bosporus. The complex is the oldest surviving Turkish architectural structure built in Istanbul, and further gives its name to the neighborhood around it in the city's Beykoz district.
Anadoluhisarı as seen from the water
Local street view of the neighborhood of the same name
The castle as seen from the coast
The castle amidst the traditional Istanbul waterside mansions known as yalı
The Bosporus or Bosphorus Strait is a natural strait and an internationally significant waterway located in Istanbul, Turkey. The Bosporus connects the Black Sea to the Sea of Marmara and forms one of the continental boundaries between Asia and Europe. It also divides Turkey by separating Anatolia from Thrace. It is the world's narrowest strait used for international navigation.
Close-up satellite image of the Bosporus strait, taken from the International Space Station in April 2004. The body of water at the top is the Black Sea, the one at the bottom is the Marmara Sea, and the Bosporus is the winding waterway that connects the two. The western banks of the Bosporus constitute the geographic starting point of the European continent, while the banks to the east are the geographic beginnings of the continent of Asia. The city of
Aerial view of the Bosporus taken from its northern end near the Black Sea (bottom), looking south (top) toward the Marmara Sea, with the city center of Istanbul visible along the strait's hilly banks
The Bosphorus, with the Castles of Europe & Asia. 19th-century engraving by Thomas Allom. The castles are Rumelihisarı and Anadoluhisarı, respectively. The original is a watercolor available in the online collection of the Victoria and Albert Museum.
Modern (2012) view of the European side of Istanbul from the southern entrance to the Bosporus