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
PFC Lokomotiv Plovdiv club of the railway workers in Plovdiv". The first years of the team are difficult as its performance does not bring about such glory as some of the other teams of the city like Sportclub or Botev Plovdiv. The club is accepted as a member of the national sport federation a whole three years after its creation. Nevertheless, in the early 1940s the team betters their performance and in 1944 wins the Championship of Plovdiv. In an economical aspect the railway club contributes heavily to the development of sports in the region of Plovdiv, making large inputs for the improvement