Summer Dance in Grant Park won’t start until June, but salsa aficionados can get their fix year-round at Nacional 27, a River North Latin restaurant that is transformed into a salsa dance club on the weekends. (Careful, the website has un-turn-offable music). Beginning at 11 p.m. on Fridays and Saturdays, DJs spin salsa, meringue, and guebradita, and Nacional’s dining room becomes a dance floor. more ›