Recreation and entertainment center "Pioneer Valley" and the zoo is the oldest zoo in Bosnia and Herzegovina. During the Austro-Hungarian period was located in Ilidža, but later it was relocated to the northeastern part of Sarajevo, just 2 kilometers away from downtown, in the municipality of Centar.
In Pionirska dolina zoo there are 57 species of animals from all over the world.
In February 2013, it is announced that Sofia Zoo will donate two lions to Pionirska dolina zoo. After they were donated in March 2013, a lioness died after several days. Cause of the death was infection with E. coli.
During the period between January 25 and February 19, 2012, Pionirska dolina hosted an exhibition with 52 dinosaurs, reconstructed by German Palaeontological Research Center, under the strict supervision of Paleontology museum in Hanover.