This shot was taken at the snow festival too, I have only cropped the right handside, because some trees were in the way. Yes, it was 16 metres in height and very impressive.
The real Hannover is well known as a city of trade fairs. It gained its reputation when the world's fair was held there in the year 2000. In 1901, the construction of this Renaissance-style city hall began and it was finally completed in 1913. However it was destroyed repeatedly during the wars, thereafter, the present building was rebuilt as the fourth reconstruction. Now it stands as the symbol of the city and is also a very popular tourist attraction.