One of the things I love about Mexico is the astonishing use of color architecturally. The Congress venue for the August 2011 IPA meeting is called the World Trade Center (once you get over the shock of the name, understand it is nothing like the lost twin towers of New York). It is a two story block structure in a surprisingly low key neighborhood with mixed residential and commercial structures. Lots of restaurants nearby, as well as two Congress hotels (the Crowne Plaza and the Holiday Inn Express).
Outdoor Cafe at World Trade Center
Interior Corridor World Trade Center Mexico City
IPA Mexico City 
Nao estou consegindo fazer minha inscriçao para o congresso e nem obtendo resposta de meus e-mails.
Agradeço ajuda