On a little patch of paradise on the edge of a mountain in the middle of a protected natural reserve is a home unlike any other. Built by local architects, this Chilean retreat known as Casa El Maqui is a masterpiece of sustainability and style. Sure the Chile Sotheby’s International Realty listing may cost a pretty penny—$1.2 mil—but that is a small price to pay for living in a chateau in Quilpué, Chile, that makes you feel like you’re in a cloud hovering over nature.