Plovdiv 40,000 objects. The Museum of Natural Science was inaugurated in 1955 in the old edifice of the Plovdiv Municipality built in 1880. It is among the most important museums in the country with rich collections in its Paleontology, Mineralogy, and Botanic sections. There are several rooms for wildlife and it contains Bulgaria's largest freshwater aquarium with 40 fish species. It has a collection of minerals from the Rhodope mountains. The Museum of Aviation was established on 21 September 1991 on the territory of the Krumovo airbase to the southeast of the city. The museum possesses 59 aircraft and indoor and
Plovdiv Synagogue). Plovdiv is the administrative center of Plovdiv Province which consists of the Municipality of Plovdiv, the Maritsa municipality, and the Rodopi municipality. The mayor of the Municipality of Plovdiv, Ivan Totev, with the six district mayors represent the local executive authorities. The Municipal Council which consists of 51 municipal counselors, represents the legislative power, and is elected according to the proportional system by parties' lists. The executive government of the Municipality of Plovdiv consists of a mayor who is elected by majority representation, five deputy mayors, and one administrative secretary. All the deputy mayors and the secretary control their