Coming up on the show: the Bregenz Festival, coffee to go, an iconic car, German artist Stefan Strumbel, and the Chelsea Physic Garden<br /><br />Bregenz FestivalWe look at the annual celebration of opera in Bregenz, Austria, where every two years a new, impressive set is built on Lake Constance. The Bregenz stage is the largest waterfront stage in the world,with seating for 6,400.