Strasbourg, France
Den Helder, the Netherlands
Leiden, the Netherlands
Leiden, The Netherlands
Liestal, Switzerland
Arnhem, the Netherlands
Soesterberg, the Netherlands
The Hague
Gelderland, The Netherlands
Wellington, New Zealand
Hoensbroek, The Netherlands
Rijswijk, The Netherlands
Leiden, The Netherlands
Nijmegen, The Netherlands
Bielefeld, Germany
Bodmin, United Kingdom
Groningen, The Netherlands
