I love the moody light in this picture, the combination of bright sun and dark clouds (frequently accompanied by heavy rain) you find under the volcanoes.
Most of the buildings in Rwanda look like this one, something you might see anywhere in the world. There are also a lot of mud brick structures, like the ones in the picture on the left below, which are reinforced with an external wood frame.
The building on the bottom right is a much older style, something I doubt anyone lives in anymore. It's in the Iby'lwacu Cultural Village, where all of the structures are named after famous conservationists. This is Dian Fossey's.