Muzeul Petrolului, Ploiesti, Romania
Open in 1961 the museum has over 8000 pieces . It is unique in Romania, but in this area rich in oil it was really convenient to exist. We can see wood drilling machinery, documents, maps and mineral samples. In the library there are scientific papers, patents for inventions, photos and letters of Lazar Edeleanu, the founder of the petrochemical in Romania.