Photo: Nabbegat (CC BY-SA 4.0) · Source Karahisar Castle
Dating to around 1350 BC and giving the city its name, this castle is built on a 226-metre volcanic rock mass. Used in the Hittite, Phrygian, Roman, Byzantine, Seljuk and Ottoman periods, it is reached by a 700-step staircase, and the whole city can be seen from the top.
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