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Aydos Castle

History and archaeology / Castle

Aydos Castle

Sultanbeyli, İstanbul

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The remains of a Byzantine castle on a spur of Aydos Hill in Sultanbeyli, taken by the Ottomans in the reign of Orhan Gazi.

Safety warning

The Aydos Museum opened at the castle in September 2026; it is free and closed on Mondays. Do not approach the pits and walls in the excavation area.

Its story

The castle was built in the Byzantine period, probably in the 11th–12th centuries; its name at the time was Aetos, meaning 'eagle'. At the beginning of the 14th century the border between Byzantium and the Ottomans ran through this area, and the castle was taken by the Ottomans in the reign of Orhan Gazi. The area has been declared a first-degree archaeological site, and in recent years excavations have been bringing the castle remains to light. From the castle hill you can see İstanbul's Asian side and the Marmara.

Key facts

Period
Byzantine, 11th–12th century
Admission
Free; museum closed on Mondays; excavation areas are off-limits
Getting there
By private car via Sultanbeyli
Visit duration
45 minutes

Trip purpose

  • Free
  • Photography
  • Quiet

Location

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40.95006, 29.25862

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Source: Web derlemesi (doğrulanmalı): https://tr.wikipedia.org/wiki/Aydos_Kalesi