What type of house is your dream home? A castle? A log cabin? Victorian home? This site has them all! Seriously though, even for those of us without $10,000,000 in the bank, they are quite fun to look at!
http://www.mansionglobal.com
Note, the image pictured here is not one of the houses on the mansion global site. They have copyright rules against using their images, so I pulled this off a CC0 Public Domain site. You seriously can find houses just like this though, so I used it as an example.