Down South, Rottet Studio turned the Renaissance Atlanta Airport Gateway Hotel into a veritable gallery of local artwork. In Boston, creative advisory firm Isenberg Projects completed a similar mission at Studio Allston, a 1960’s former Ramada Inn gut-renovated by architecture firm Dyer Brown. Now, works by 21 artists don’t just hang on the hotel’s walls, they become the walls. In the lobby, for instance, where concrete flooring was polished and the ceiling exposed, hyper-colored geometric shapes on castors are both installation and space dividers. An abandoned van found on-site inspired the one in the parking lot today, painted a kaleidoscope of hues and forms. A dozen different artists, including local Jay Lacouture, outfitted the 117 guest rooms with custom murals. Culinary artistry appears at Casa Caña, the hotel’s restaurant that Dyer Brown infused with a tropical vibe.