Восточная Македония и Фракия
The Çelebi Sultan Mehmed Mosque (; ), also known as the Bayezid Mosque (Τέμενος Βαγιαζήτ) and the Great Mosque ( or "Ulu Camii"), is an early 15th-century Ottoman mosque in Didymoteicho, East Macedonia and Thrace, in the far northeast of Greece.