Cluj-Napoca, until 1974 Cluj, is the third largest city in Romania and the seat of Cluj County in north-western Transylvania. Geographically, it is roughly equally distant from Bucharest (323 km / 201 mi), Budapest (354 km / 220 mi) and Belgrade (327 km / 203 mi). The city lies in the valley of the Someşul Mic River and is the capital of the historical province of Transylvania.