Bolu

Bolu is a city in northern Turkey, and administrative center of the Bolu Province and of Bolu District, located on the highway between Istanbul and Ankara. Its population is 184,682 (2021).

lake in Turkey

national park in Bolu Province, Turkey

8.0 magnitude earthquake in 1668 in North Anatolia, Ottoman Empire (present-day Turkey)

village in central district, Bolu, northwestern Turkey

Bithynium or Bithynion () was an ancient city in Bithynia. Its site is occupied by the modern town of Bolu, Asiatic Turkey.

museum in Bolu, Turkey