Translation of grandmaster in German

On the drive into the city center we were a little shocked by the amount of motorcycles, by the pollution and stress in that city. After only two days in a small village we forgot how it was.
The different monuments were located in one big compound in the center. Strangely on the same day that we have visited there the prime minister of Thailand came for a visit in the same area.
The biggest city in Germany is Berlin. The other big cities are not as big but some of them are really nice. And especially the smaller cities here are very charming and worth visiting.