Since many families choose to build their bedrooms onto a separate wing, or far end, of a home, doesn't it make sense to put them on another level altogether — such as on a rooftop? Built in Rotterdam, The Netherlands, by the firm MVRDV, is this very cool rooftop house extension, which was added onto an existing home. I love the look of these little house bedrooms, which offer privacy to each family member, and appear to be a tiny village growing atop the existing home's roof. I'm also completely in love with the unexpected, brilliant blue color of this addition.

Other features of these rooftop bedrooms include open-air showers, benches, trees, and parapet walls with windows. I find this addition so charming, and though I'm sure some fuddy-duddy neighbors may be complaining, I certainly wouldn't be one of them. In fact, I'd be the first one over with a basket of cookies, asking if I could get a closer look at the addition.