If home is where the heart is, Syracuse will be full of blood-pumpers during the second annual Downtown Living Tour, taking place throughout Armory, Clinton and Hanover squares, as well as through the Montgomery Street corridor, on Saturday, May 17, noon to 6 p.m. Tourists will have a chance to peek inside “green” spaces, the live-and-work digs of local artists and entrepreneurs and other housing arrangements throughout the downtown area. For those who don’t want to take the walking tour, a free, hybrid Centro shuttle will cart visitors to the tour’s locations. Tickets for the tour are $12, and parking will be available in the Hotel Syracuse garage for $3. For more information, call 422-8284.