The Lunenburg Opera House is a functioning performance venue in a restored historic building in the heart of the Old Town. It hosts theatre, music, comedy, and community events throughout the year, with the summer season being the busiest. The building itself, with its original Victorian detailing and wooden interior, is worth a look regardless of what's on.
Check the program before your visit — the quality of what's on stage can vary, but the venue is atmospheric and the shows are usually genuinely local rather than the kind of generic tourist entertainment that larger resort towns inflict on their visitors. During folk music festivals and summer special events, the Opera House is often one of several venues and worth the ticket price.