You can find many buildings and houses with interesting architecture on Google Maps street view. You can find randomly find them while browsing the street views and photos on their website. One such place that I found recently is in New York City at Green-wood Cemetery in Brooklyn.
It's a creepy but beautiful old mansion with a design that looks like it is straight out of a horror movie. https://goo.gl/maps/7a7QaHsVdAoVYiGE9