The Berlin Main Station (Hauptbahnhof) has several levels. Apart from Shopping Malls on several levels, where the shops are open beyond normal business hours, including Sundays and Public Holidays, the deep (tief) station has platforms at the lowest level, seen here. That is where the main and regional trains operate from. Photo was taken in May 2010

Photo by LJ Vosloo (vosloo@iafrica.com)