Zerba 泽尔巴
Zerba is a comune (municipality) in the Province of Piacenza in the Italian region Emilia-Romagna, located about 170 kilometres (110 mi) west of Bologna and about 50 kilometres (31 mi) southwest of Piacenza. As of 31 December 2004, it had a population of 123 and an area of 25.0 square kilometres (9.7 sq mi).