Bithynian colonies

Bursa is a city in northwestern Turkey and the administrative center of Bursa Province. It is the fourth-most populous city in Turkey and second-most populous in the Marmara Region after Istanbul. According to 2025 end of year estimate, the province has a population of 3,263,011 while Bursa city has a population of around 2.5 million. Bursa is one of the centers of Turkey's automotive production, becoming an industrial center of the country. The city provides various places of interest.

Nicomedia (; , Nikomedeia; modern İzmit) was an ancient Greek city located in what is now Turkey. In 286 AD, Nicomedia became the eastern and most senior capital city of the Roman Empire (chosen by the emperor Diocletian who ruled in the east), a status which the city maintained during the Tetrarchy system (293–324 AD).

ancient city of Bithynia in modern-day Turkey

thumb|Street thumb|Zeytinbağı in 1990 Tirilye (between 1968 and 2012: Zeytinbağı, "Olive yard") is a neighbourhood of the municipality and district of Mudanya, Bursa Province, Turkey. Its population is 1,409 (2022). With the 2013 Turkish local government reorganisation, its town (belde) status and its municipality (belediye) were abolished, and it was made a neighbourhood (mahalle). It is situated west of Mudanya along the Marmara seashore. The area, which was inhabited since the eighth century BC, was formerly known as Τρίγλεια, Trigleia or Βρύλλειον, Brylleion in Greek. The most important hi

ruined city located in Düzce Province