Dubrovinik is a fabulous old town, dating from the 7th century.It is on UNESCO's list of World Heritage Sites. Enclosed by city walls built in the 13th century, the buildings represent a cross-section of medieval architectural styles and remain well preserved. Onofrio's Fountain, situated just inside the main entrance to the old city at Pile Gate, is one of Dubrovnik's most famous landmarks and a popular meeting place. The centre of the old town is the Stradun, its main street, which was originally a channel separating an island from the mainland, and was filled in to join two opposite towns into the merged city of Dubrovnik. There are numerous churches, monasteries and museums to explore; the old town also boasts plenty of restaurants, bars and shops; and the coastal belt is awash with marinas, coves and promenades. Most of the hotels and the best beaches are located north west of the old town at Lapad, as well as in Ploce to the north east.