Of course it is not only buildings and structures that are at the centre of all the attention, but it is certainly a start. Take the Erasmus Bridge for example, this year marks its 20th anniversary connecting the city centre to the south of Rotterdam. Without a doubt it is one of the city’s icons, and that is why something had to be done to celebrate this milestone. Rotterdam viert de stad! organised an ‘open call’, a way for designers to send in their ideas for decorating the city.