Beautiful Building!
We enjoyed our visit to Casa Loma. It's a great place to take pictures. Outside, the castle is gorgeous in the sun. Inside is just as beautiful.
We did spend a little longer than I would have liked there, but overall we had a good time. The place is so big, it takes a while to see EVERYTHING, if that's your goal.
Top floor is worth the climb because there are doors giving you access to the staircase that goes up into the big spire. Be warned, football players like myself don't fit up those tight spiral staircases up the many flights of stairs very well. It was still pretty cool to be up there, even if the windows were very small and hard to look out of.
Also on the top floor was a military museum. Being from the States, I wasn't that interested in reading everything about the history of the Canadian military unit, but I'm sure it would be of great interest to someone interested in their own country's history.
I'd say a visit to Casa Loma is a one-time event. Not sure if I'd go back on my next visit to Toronto, but I enjoyed my first visit there.