I just came across a neat site, from QDQ, which allows you to type in a Madrid address and building number and it will return an image of what that building looks like. So if you’re booking a hotel or hostal, a restaurant or even to rent a new flat, simply type in the address and the website will return an image of that building. If you want to test it out, take a look at the shops listed on the Shopping Archives section of this site.