The Opera House
The Orpheum Theatre, 850 block on the corner of Smithe and Seymour Streets, downtown Vancouver.
Travel Tips: Appearing in numerous episodes, The Opera House is an amazing spot to visit. In July and August, The Orpheum Theatre provides public tours that cost about $10 per person. The tour is two hours long and you get to explore the Orpheum from basement to attic!  An article about tours in 2011: Orpheum Tours.

Our tour guide, Arthur, was such a nice guy. There was an orchestra rehearsing while we were there, so we had to wait quite a while before we could get on stage. At first, Arthur would only let us peek into the theatre, then after a few more minutes of exploring, he let us quietly step in and walk a few meters to stand and listen. Finally, he got comfortable enough with Anne and me that he let us sit in balcony seats and enjoy the music. It was amazing. The orchestra rehearsal was scheduled to end at 12:30 pm, but we got worried as they seemed to be in the middle of a very long piece as the time approached. In the end, they stopped mid-piece and packed up their stuff on the dot of 12:30 pm!  It was AWESOME to be on stage afterwards.