The Museo Archeologico Ostiense (or Archaeological Museum of Ostia) is an archaeological museum dedicated to the ancient Roman city of Ostia in Rome, Italy. The museum was built by Pope Pius IX, who in 1865 had to readapt a fifteenth-century building used as a store to create a city museum. Contained in the museum are numerous archaeological objects which came to light during a long period of excavations. The collection includes, for example, a collection of portraits of famous people from ancient Ostia, including philosophers and members of the royal family, such as busts depicting Asclepius and Volcacius Myropnous, a portrait of Faustina the Elder and the head of Trajan. The museum also has a large collection of sculptures, including the statue of Perseus holding the head of Medusa, the