Architecture

Centre for Canadian Landscape Architecture Archives A sampling of the University of Guelph's  Canadian Landscape Architecture Archives.  Includes plans, drawings, photos, architects notes etc.

Canadian Architecture Collection
Provides access to a variety of image archives, including the Moshe Safdie Hypermedia Archive and the Erickson Archive. From McGill University :

Architecture and Interior Design for 20th Century America
Provides almost 30,000 images of interiors and exteriors of homes and historic, retail and industrial  buildings. From the Library of Congress.

Chicago ImageBase
Images of buildings and some architectural drawings. Searchable  by keyword, architect or time period.

Emporis
This database contains Images of skyscrapers and tall structures, including ones that have been proposed, demolished or were "never built." Arranged by city.

Great Buildings.com
Search by architect, place, or bulding name.
Note: Not all buildings have accompanying images.

Librophiliac: A Compendium of Beautiful Libraries
A random collection of images of some of the most impressive historic libraries in the world, including images from France, Spain, Portugal, Italy, Germany, England, Mexico, the U.S. and, of course, the Parliament Library in Ottawa.

SPIRO
Berkley University's architecture slide collection. Small images.

THAIS.IT:Architettura
Covers architecture from around the world through 40 centuries.  Browsable by , subject period or location.

World's Fair Ephemeral and Graphic Materials Collection
The history of World's Fairs (1851-1970) in digital images from the Architecture Library at the University of Maryland.  Searchable by keyword