Berlin Central Station
The Berlin Train Station (Berlin Hauptbahnhof) was designed by architects Meinhard von Gerkan and Jürgen Hillmer and can hold more than 1,500 trains and 25,000 passengers on a daily basis. 500 000 m³ of concrete and 85,000 tons of steel was used to make the building and individual bays ventilation towers are equipped with 27000 glass blocks. Overarching the building is a giant dome (the roof) which is made from 11 800 glass panels, which are all uniquely different. Among the glass dome, an area of 2700 square meters of solar panels is composed of 1250 modules.