Hereke Kalesi, Medieval fortress in Körfez, Turkey
Hereke Kalesi is a stone hilltop castle overlooking Izmit Bay in Kocaeli Province, within the district of Körfez. The remains include sections of defensive walls and tower bases, giving a clear sense of the layout of the original fortification.
The fortress was built during the Byzantine period, when this stretch of coastline served as a strategic point between Constantinople and Anatolia. Ottoman forces took control of it in the 14th century and incorporated it into their wider network of coastal defenses.
The name Hereke is widely known in the region for its hand-woven carpets, a craft that has shaped the identity of this small town for generations. Visitors to the area often discover this textile tradition alongside the ruins, giving the stop an unexpected depth.
The site sits on a hill and is reached on foot over uneven ground, so sturdy shoes are a good idea. The walk up offers open views over the bay, which makes the approach worthwhile in itself.
Although the castle itself draws little attention, the town of Hereke became famous in the 19th century for producing silk carpets made exclusively for the Ottoman imperial palaces. Some of those carpets ended up in European royal collections and can still be seen in palaces and museums abroad.
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