We have tickets to Tosca at the Opera House in Budapest as recommended by James on the Hungary board. We are in Prague Oct 12-13-14/Sun-Mon-Tues. The only set agenda is a Panoramic City Tour Monday morning with our Viking post-cruise trip. If we were looking for something to do one of the nights we are in town, preferably in a historic setting, can someone point me at a venue and/or offer a suggestion? Thank you!