1410 Service St., Detroit; 313-744-6505; 1xrun.com
It would be impressive enough if 1xRUN just ran its artist-in-residency program, which has welcomed more than 150 artists from across the globe. Still more impressive is its Murals in the Market festival, which has resulted in more than 100 murals going up in Detroit. But the core business is as an international publisher of fine art editions, with collectors in 100 countries. The real treasures are on sale inside Inner State Gallery, which stocks 1xRUN's rare editions and books published over the last five years.