Alaaddin Mosque
It is located within the borders of Odunpazarı District in Eskişehir. It was built during the Anatolian Seljuk State Period in 1267 during the reign of Gıyaseddin Keyhüsrev III. After 1267, changes were made on the mosque and it lost its Seljuk architectural features with restorations. The mosque, located in the park named after itself, is one of the oldest mosques in the city. There is a green area around Alaeddin Mosque called Alaeddin Park. The mosque, which was used as a museum between 1944-1951, has been restored and opened for worship since then.