- Szczecin, Poland (2020)
- Hall in Tirol, Austria (2018)
- Rome, Italy (2016)
- Delft, The Netherlands (2014)
- Ghent, Belgium (2012)
- Sofia, Bulgaria (2010)
- Ilmenau, Germany (2008)
- Sorrento, Italy (2006)
- Grenoble, France (2004)
- Lodz, Poland (2002)
- Torino, Italy (2000)
- Jyvaskyla, Finland (1998)
- Brno, Czech Republic (1996)
- Geneva, Switzerland (1994)
- Warsaw, Poland (1992)
- Pavia, Italy (1989)