Oviedo building height map
This map shows buildings in Oviedo (Spain) by number of floors. The goal is to understand the urban morphology. The south european cities are generally denser than northen ones or north american cities. The key fact it is the lack of urban sprawl phenomena. However some neighborhoods are inspired by the model of garden cities, and in contrast to many other urban areas, outskirts it isn't a synonym of low density zones.