Alâeddin Eskişehir Mosque, Ottoman mosque in Odunpazarı district, Eskişehir, Turkey.
Alâeddin Mosque is a rectangular prayer house in Odunpazarı with an octagonal dome spanning 6.5 meters across. Large windows flood the interior with daylight across two levels, with a dedicated upper gallery for women accessed from the north side.
The building was constructed in 1267 under Sultan Giyaseddin Keyhüsrev III, making it among Eskişehir's oldest structures built with rubble stone masonry. It later served as an archaeology museum starting in 1945 before being restored to its original purpose.
The walls display Quranic inscriptions in late Ottoman style, showing how faith and craftsmanship came together in this space. You can observe how people use the prayer hall and treat this place as an active center of worship.
The structure sits in central Eskişehir near shops and cafes, making it easy to reach on foot from surrounding streets. A wooden staircase on the northern side provides access to the upper floor, so wear comfortable shoes to navigate the two levels.
This mosque served as an archaeology museum for nearly 75 years before returning to its original function through a major restoration in 2014. Few visitors realize it once housed artifacts from the surrounding region during that period.
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