Berlin, Germany is a metropolitan city with modern architecture, a variety of residential areas, open spaces, and infrastructure. Seen from a bridge, the view of the river, buildings, facades, high-rises, and cityscape is showcased. On a clear day, with contrails in the sky, the infrastructure of the city, such as roads, pavements, and canals, can be seen. The city is a mix of concrete, grass, asphalt, and other composite materials.