The best place to find visual precedents is in the architecture journal literature. You can browse the journals, or search the project type in the Avery Index to Architectural Periodicals where these journals are indexed.
The databases below have images by project type and ARTstor has many architectural models and drawings.
Art & Architecture ePortal - over 40,000 images from publications on art and architecture
Explore Architecture on Architecture.com by RIBA (Royal Institute of British Architects) has an excellent building type section.
GIS & Geovisualization - A guide to some of the mapping resources available through the University of Manitoba Libraries.
Data Visualization - a guide for data visualization support.
Winnipeg Historical Maps - This Flickr collection includes maps covering Winnipeg transportation, growth and boundaries, zoning and planning, and geological engineering.
For more information please contact:
GIS & Data Visualization Librarian Elizabeth Dafoe Library Meg.Miller@umanitoba.ca
"The Cities and Buildings Database is a collection of digitized images of buildings and cities drawn from across time and throughout the world, available to students, researchers and educators on the web. It contains images ranging from New York to Central Asia, from African villages, to the Parc de la Villette, and conceptual sketches and models of Frank Gehry's Experience Music Project. They are freely available to anyone with access to the Web for use in the classroom, student study, or for individual research purposes."