The opening day of the model-makers' fair was until now the least-visited day of the whole fair. The aim was to change that this year.

Obviously some of the U2-guests spontaneously changed their plans: the previous visitor number record was increased by a further 4% and the model-makers' fair enjoyed its best ever opening day.

In the week of the model-makers' fair, the Vienna underground passengers travelling on the U2 line - the line that travels to the trade fair - were witness to a unusual experiment: The Shrinking of Vienna.

With the help of the spoken diminutive, we re-recorded the classic station announcements. In the German language it's possible to make a object sound smaller or cuter by adding either "-chen" or "-lein" to the word. So we managed to shrink the whole stretch of the U2 line in both directions.

The puzzle was finally revealed as the train reached the trade fair station.

The magic of model-making is to make things smaller. In using the diminutive for the classic station announcements, we transferred much of this magic directly to the U2 line, which happens to be the line that travels directly to the trade fair.