“Nearly 14 million visitors troop through Venice each year, turning parts of the 1,500-year-old former island republic into a clichéd tourist destination. Locals grumble that day-trippers have transformed the Rialto Bridge and St. Mark’s into an Italian Disneyland. But outlying neighborhoods like Castello see few tourists. The nearly two-hour tour, dubbed History Unwired, features five recordings by local residents – ranging from a glass blower to a ska musician – along with flash animations, maps, and movie clips, all uploaded onto a PDA. Three Bluetooth sensors peppered along the route trigger a virtual tour of a Venetian home and two art installations, one projected on a building, another on hanging laundry.”