Tallinn Zoo Tallinn Zoo is a zoo in Tallinn, Estonia. is a zoo in Tallinn, Estonia. The Zoo was founded in 1939. The first inhabitant was a lynx named Illu. Tallinn Zoo Tallinn Zoo is a zoo in Tallinn, Estonia. is the only Zoo in Estonia and, since 2009, has been the most visited Zoo in the Baltic countries. At the end of 2021, the Zoo had 7886 specimens of 351 species.