American College of Healthcare Architects - http://www.healtharchitects.org
Aims to offer board certification within the specialized field of healthcare architecture.
National Trust - http://www.nationaltrust.org.uk/main/
Hire an unusual wedding venue from the National Trust. Have a wedding in a castle or historic house, with hundreds to choose from.
Rice Design Alliance - http://ricedesignalliance.org/
A non-profit organization dedicated to the advancement of architecture, urban design, and the built environment in the Houston region.