Ostashkov
…administrative center of Ostashkovsky District in Tver Oblast, Russia, on a peninsula at the southern shore of Lake Seliger, 199 kilometers (124 mi) west of Tver, the administrative center of the oblast. Population: 18,088 (2010 census); 20,660 (2002 census); 27,401 (1989 Soviet census). The island of Klichen…