Reflecting its international origins and concerns, the event 'moves' around the world. The World Congress has been held since 1986 in the following cities:
2018 Chicago, USA
2016 Istanbul, Turkey
2014 Santiago, Chile
2012 Melbourne, Australia
2010 Montreal, Canada
2008 London, UK
2006 Singapore
2004 Rio de Janeiro, Brazil
2002 Mexico City, Mexico
2000 Paris, France
1998 Caracas, Venezuela
1996 Hong Kong
1994 San Francisco, USA
1992 Madrid, Spain
1990 Buenos Aires, Argentina
1988 Sydney, Australia
1986 Washington DC, USA