The city of Doclea, also know as Duklja or Diokletija, is Montenegro's foremost ancient site. Founded in the 1st century AD, the city was built on a plateau near the confluence of the Zeta and Moraca rivers and had a forum, temples, basilica, thermal pools and a necropolis. Becoming the provincial capital around 300AD and housing some 40,000 people, it lost power after the 4th century invasions and was eventually ravaged by a lethal combination of Goths, Slavs and earthquakes. A low wall, medieval defence towers, a partially uncovered road and some other scattered remnants are visible today. It's possible to walk to Doclea by following the east bank of the river north from the City Stadium and crossing the railway bridge.