This month at the Rock Hall, Rock Hall Nights focuses on Mardi Gras and offers patrons the chance to "step inside the exhibits and experience the museum in a whole new way." There will be live music and you'll get a "special look" at an artifact from the Rock Hall vault. Rock Hall curators and educators will be on hand to engage, teach and inspire fans. The event runs from 6 to 9 p.m. Admission is $21, or free for Rock Hall members and residents of Cleveland. (Niesel)