Seating 5,000, this outdoor amphitheater in the Seaport District is open May through September and brings in big-name, old-school acts such as Jackson Browne, Jethro Tull, and Foreigner. It’s next door to the giant Liberty Wharf restaurant space—which includes not just Legal Harborside but Del Frisco’s Double Eagle Steak House, Temazcal Tequila Cantina, Tony C’s Sports Bar & Grill, and 75 bistro, as well—making it a fun spot for an evening out.