Split is the largest Dalmatian city, the second-largest urban centre in Croatia, and the seat of Split-Dalmatia County. The city is located on the shores of the Mediterranean, more specifically on the eastern shore of the Adriatic Sea, spreading over a central peninsula and its surroundings, with its metropolitan area including the many surrounding seaside towns as well. An intraregional transport hub, the city is a link to the numerous surrounding Adriatic islands and the Apennine peninsula, as well as a popular tourist destination. Split is also one of the oldest cities in the area, and is traditionally considered just over 1,700 years old, while archaeological research relating to the ancient Greek colony of Aspálathos establishes the city as being several hundred years older.