With its giant atrium, the Cleveland Museum of Art has space to spare. So why not take a yoga class at the facility. Today at 11 a.m., Atma Center sponsors a special yoga session in the North Court Lobby. Tour the galleries and then participate in a session. Pre-registration is required; go to the Cleveland Museum of Art website for more info. Tickets are $12, $8 for CMA members. It's BYOM (Bring Your Own Mat). (Niesel)