Walter and Christie Isenberg are best known for bringing Denver hotels back from the dead. But last year, the Isenbergs unveiled a development of a very different flavor when they opened Tiri's Market: a former parking lot that has been transformed into a pocket Eden, with raised beds and pergolas dripping with vines, all of it inspired by Michelle Obama's garden on the White House lawn. Fresh herbs, flowers and vegetables grown on the site are sold every Wednesday at an adjoining farmers' market. Some of the green stuff is planted by homeless youth from Urban Peak, who keep what they grow. Here's hoping the Isenbergs will green some of the city's other empty lots.