WoW — the acronym stands for Without Walls, La Jolla Playhouse’s adventurous program that brings theater beyond the confines of buildings and into the wide world outside. It started in 2011 with “Susurrus,” an iPod play with music that was also a stroll through San Diego Botanic Garden. Each year brought new site-specific experiences — “The Car Plays” in the Playhouse parking lot; a Greenwich Village nightclub act in Hillcrest; a play-along street theater/walking tour of Little Italy; and in 2013 (the first WoW Festival), four days of special events staged by local, national and international artists that turned the Playhouse Theatre District into Festival Village.