Trondheim Trondheim Trondheim (; historically Kaupangen, Nidaros and Trondhjem) is a city and municipality in Trøndelag county, Norway. It has a population of 193,501 (4th quarter 2017), and is the third-most populous municipality in Norway, although the fourth largest urban area. It is the third largest city in the country, with a population (2013) of 169,972 inhabitants within the city borders. Trondheim lies on the south shore of Trondheim Fjord at the mouth of the River Nidelva. The city is dominated by the Norwegian University of Science and Technology (NTNU), the Foundation for Scientific and Industrial Research (SINTEF), St. Olavs University
Metropolitan City of Naples capital city. Due to the presence of Vesuvius and Phlegraean Fields, the city is vulnerable to seismic and volcanic activity. The city is 96th out of 110 Italian provinces and metropolitan cities by landmass, with an area (1,171 km² including islands) that is smaller than the core "comune" of Rome (1,287 km²). Naples is nevertheless Italy's 3rd largest city by population, making it one of the most densely populated areas in Europe; the metropolitan region also includes the municipality of Casavatore, the highest-density municipality in Italy (at 12,000 inhabitants/km²). While it contains more than half of Campania's population, it only