in 2018. The city also has a number of important art galleries. Such include the Macedonian Museum of Contemporary Art, housing exhibitions from a number of well-known Greek and foreign artists. The Teloglion Foundation of Art is part of Aristotle University of Thessaloniki and includes an extensive collection of works by important artists of the 19th and 20th centuries, including works by prominent Greeks and native Thessalonians. The Thessaloniki Museum of Photography also houses a number of important exhibitions, and is located within the old port of Thessaloniki. Archaeological sites Thessaloniki is home to a number of prominent archaeological sites. Apart from its recognized UNESCO World Heritage Sites, Thessaloniki features a large two-terraced Roman forum featuring two-storey stoas, dug up by accident in the 1960s. The forum complex also boasts two Roman baths, one of which has been excavated while the other is buried underneath the city. The forum also features a small theater, which was also used for gladiatorial games. Although the initial complex was not built in Roman times, it was largely refurbished in the second century. It is believed that the forum and the theater continued to be used until at least the sixth century. Another important archaeological site is the imperial palace complex which Roman emperor Galerius, located at Navarinou Square, commissioned when he made Thessaloniki the capital of his portion of the Roman Empire. The large octagonal portion of the complex, most of which survives to this day, is believed to have been an imperial throne room. Various mosaics from the palatial complex have also survived. Some historians believe that the complex must have been in use as an imperial residence until the 11th century. Not far from the palace itself is the Arch of Galerius, known colloquially as the Kamara. The arch was built to commemorate the emperor's campaigns against the Persians. The original structure featured three arches; however, only two full arches and part of the third survive to this day. Many of the arches' marble parts survive as well, although it is mostly the brick interior that can be seen today. Other monuments of the city's past, such as the Incantadas, a Caryatid portico from the ancient forum, have been removed or destroyed over the years. The Incantadas in particular are on display at the Louvre. Thanks to a private donation of €180,000, it was announced on 6 December 2011 that a