The websites for the former LGM editions:

2006 – Lyon, France (original website)
2007 – Montreal, Canada
2008 – Wrocław, Poland
2009 – Montreal, Canada
2010 – Brussels, Belgium
2011 – Montreal, Canada
2012 – Vienna, Austria
2013 – Madrid, Spain
2014 – Leipzig, Germany
2015 – Toronto, Canada
2016 – London, UK
2017 – Rio de Janeiro, Brasil
2018 – Seville, Spain

Upcoming:
2019 – Saarbrücken, Germany