The National Museum of Iran ( ) is located in Tehran, Iran. It is an institution formed of two complexes; the Museum of Ancient Iran and the Museum of Islamic Archaeology and Art of Iran, which were opened in 1937 and 1972, respectively. The institution hosts historical monuments dating back through preserved ancient and medieval Iranian antiquities, including pottery vessels, metal objects, textile remains, and some rare books and coins. It also includes a number of research departments, categorized by different historical periods and archaeological topics. History The brick building of the Museum of Ancient Iran was designed by French architects André Godard and Maxime Siroux in the early 20th century, and was influenced by Sassanian vaults, particularly the Taq Kasra at Ctesiphon. Its construction, with an area of about , began in 1935 and was completed within two years by Abbas Ali Memar and Morad Tabrizi. It was then officially inaugurated in 1937. The Museum of the Islamic Era was later built with white travertine on the grassy grounds of the Museum of Ancient Iran. Firouz Bagherzadeh, director of the Iranian Center for Archaeological Research, hold a series of symposiums on Iranian archaeology in this building. It has gone through quite a few hasty interior changes, and was still being remodeled when the 1979 Revolution swept the country. While the Museum of Ancient Iran always had a clear mandate to show archaeological relics, as well as some rare medieval textiles and rug pieces, the newer complex began to also feature the exquisite Amlash pottery from prehistoric Caspian Sea regions of Iran. This followed some modern works, and the repeated gutting and remodeling of the interior. The Museum of Ancient Iran consists of two floors. Its halls contain artifacts and fossils from the Lower, Middle, and Upper Paleolithic, as well as the Neolithic, Chalcolithic, early and late Bronze Age, and Iron Ages I-III, through the Median, Achaemenid, Seleucid, Parthian, and Sassanian eras. The newer complex consists of three floors. It contains various pieces of pottery, textiles, texts, artworks, astrolabes, and adobe calligraphy, from Iran's post-classical era. Ancient Iran Museum The permanent exhibition covers a surface area of some 4,800 square meters on two floors and a basement, containing selected artifacts in chronological order, from the Lower Paleolithic period (ca. 1,000,000 years ago) to the end of Sasanian times (651 CE). The first-floor galleries contain prehistoric objects including Paleolithic, Epipaleolithic, Neolithic,