Want to research A-frames
(http://www.bearcamp.com/images/aframe.jpg)
to Victorian?
(http://upload.wikimedia.org/wikipedia/en/thumb/5/51/Victorian_House.jpg/180px-Victorian_House.jpg)
http://en.wikipedia.org/wiki/List_of_house_types
Tip: Once you have a house type you are interested in do a Google image search (http://www.google.com/imghp?hl=en&tab=wi&complete=1&q=) on that term.