Höweler + Yoon Architecture of Boston has taken its sharp, analytical approach to the burgeoning western Chinese city of Chengdu, producing a hospitality project that promises to become a local landmark. More than just a high-end guest house, the Lithos Wellness Center is slated to be a full-service yoga and wellness retreat, an oasis in the center of the bustling megalopolis. Availing themselves of the lakefront site, the designers created a building that marks a formal and functional break in the quotidian operations of the urban environment.