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
Community of Madrid of New Castile. The Community of Madrid is the third most populous in Spain with 6,549,979 (2018) inhabitants mostly concentrated in the metropolitan area of Madrid. It is also the most densely populated autonomous community. Madrid's economy is roughly equal in size to that of Catalonia, which remains Spain's largest. Madrid thus has the highest GDP per capita in the country. The territory of the Community of Madrid has been populated since the Lower Paleolithic, mainly in the valleys between the rivers of Manzanares, Jarama, and Henares, where several archaeological findings have been made. Some notable discoveries of the region