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 Botev Plovdiv matches from the city rivals from Lokomotiv Plovdiv. During the second half of the 1980/81 season, "The Smurfs" (Lokomotiv Plovdiv) played their home matches on The College (which was followed by a relegation in the second division) as well as one match in the 2003/04 season (when Lokomotiv won the A PFG for the first time). Spartak Plovdiv also used the stadium for several matches during the 1995/1996 season. The stadium has also hosted the Bulgarian Cup final in 2000, when Levski Sofia won the cup after 2:0 against Naftex Burgas. In the summer of 2008, the stadium underwent renovations