The best remedy to the winter blues—and icy winds if you’re in northeastern U.S.—is to scroll through pictures of modern homes located in places with warmer climes. And somehow the perfect summer getaway homes always seem have the exoticness of tropical or far-flung regions in the world and the effect of making the city around it dissolve away. Such is the feeling that pervades Villa Allegra in Miami, Florida, which was designed by the firm Oppenheim.