The cultural revival of Downtown Miami is complete with the opening of this elegantly iconic multi-purpose performance venue.. In Short Pick your passion. The Carnival Center houses two signature performance venues. The casual 2,200-seat Knight Concert Hall features contemporary comedians and musical acts while the fancier Sanford and Delores Ziff Ballet Opera House seats 2,400 guests for operatic fare along with traveling Broadway shows and ballet troupes. The compact venues are multi-tiered to get the audience chamber as close as possible to the stage. A smaller 200-seat Studio Theater stages more intimate performances.