Utrecht station, Netherlands

Being a central hub in the country, Utrecht station sees a lot of trains.  According to wikipedia: "Until the 1970s the station building of 1865 remained in place, though a fundamental renovation took place in 1936. Two years later, a fire burned down most of the building, which was subsequently rebuilt. That station building of the late 1930s was in turn demolished in the 1970s to make way for Hoog Catharijne, then Europe's largest enclosed shopping mall, which opened on 17 December 1973. Since that moment, the station hall no longer had a real entrance; the passageways of the shopping mall just continue into the station. In 1989, the station hall was enlarged to include an extra platform."