Downtown’s Theater District bustles with energy in the evenings. Broadway hits, opera and dance are staged at a cluster of venues, including Emerson Colonial Theatre’s ornate Cutler Majestic Theatre and the historic Boston Opera House. Comedy and music acts perform at the Wilbur Theatre. Low-key pubs, wine bars, and modern bistros draw theatergoers and guests from nearby hotels. A few thumping nightclubs draw a stylish young crowd.