of hills was virtually destroyed at the beginning of the 1900s, and there is only a small outcrop of rock left to show where it once stood.
Plovdiv's written post-Bronze Age history lists it as a Thracian fortified settlement named Eumolpias. In 342 BC, it was conquered by Philip II of Macedon, the father of Alexander the Great, who renamed it Philippopolis or "the city of Philip" in his own honour. Later, it again became independent under the Thracians, until its incorporation into the Roman Empire, where it was called Trimontium (City of Three Hills) and served as metropolis (capital) of the province of Thrace. Thrimontium was an important crossroad for the Roman Empire and was called "The largest and most beautiful of all cities" by Lucian. The name Plovdiv first appeared around that time and is derived from the city's Thracian name Pulpudeva (assumed to be a translation of Philippopolis, from Pulpu = Philippou and deva = city), which was rendered by the Slavs first as Peldin or Plovdin.
It has more than 200 known archeological sites, 30 of which are of national importance. Some of the world-famous sites include the Roman amphitheatre (early 2nd century AD) and stadium (late 2nd century AD), the magnificent colored mosaics of the villas, the ones of the episcopal temple, the Nebet Tepe archaeological complex and the noted samples of Bulgarian National Revival architecture, such as the Balabanov House, the Kuyumdzhiev House, the Lamartine House, and the houses of Georgiadi, Nedkovich, and Hindian.
Also of note is that there are more than 30,000 cultural artifacts, kept in the five Plovdiv museums: the Archaeological Museum, the Ethnographic Museum, the Historical Museum, the Natural Museum and the City Art Gallery. from the end of the 6th century BCE consists of six uniquely decorated golden utensils, together weighing more than 6,000 kg.
The Old Town of Plovdiv is a historic preservation site known for its unique Bulgarian Renaissance architectural style. The Old Town covers the area of the three central hills (Trihalmie) — Nebet Tepe, Dzhambaz Tepe and Taxim Tepe. Almost every house in the Old Town is characteristically impressive in its exterior and interior decoration.