Below are a suggestions for finding images both on the web and also from Library resources. While you can undoubtedly find a wealth of visual content from a simple Google search, there are a few sites which have curated excellent image collections of art, architecture and design, with proper citations in case you need to include them in your paper.
ARTstor is a collection of digitized images from some of the country's most renowned museums, cultural institutions and colleges and universities. Users can search by keyword, or browse by collection, classification, or geographical area. More information on searching in ARTstor, saving images and zooming in on features can be found here: http://libguides.nysid.edu/artstor
For a 360 degree view of works of architecture, check out the cool QTVR's!
Le Corbusier. Unite d'Habitation, exterior, roof. 1947-1952. http://library.artstor.org/asset/ASTOLLERIG_10311331359. Web. 3 Jan 2018.
Great Buildings is a digital compendium of images and plans from Architecture Week, a verified, citable source on the web. This is a fabulous verified source that provides further sources on each page about that work of architecture. See the example below:
