It subsequently came under Roman, then Byzantine rule before falling to Osman Bey in 1326 becoming the first capital of the Ottoman Empire. Many important Ottoman buildings remain. It is at the center of an important fruit growing region. Bursa was, and is still, famous for its silk trade, towel manufacture and thermal springs. You must taste locally invented Iskender Kebab, a dish of bread, tomato sauce, strips of grilled meat, melted butter and yoghurt.
Candled chestnuts are another regional specialty.
Across the street, the Yesil Mosque of 1424 reflects the new Ottoman, as opposed to Seljuk, aesthetic. A medrese nearby completes the complex which is also home to the Ethnographical Museum. Before exploring this area, stop for a glass of tea in one of the traditional tea houses. From here you proceed to the covered bazaar area, with its narrow streets, caravanserais and bedesten. On the other side of Koza Park stands the Orhan Gazi Mosque built in 1413 and one of Bursa's oldest religious buildings.