Ontario Place in Toronto - former home of the Canadian National Exhibit Grounds - I lived right next to this beautiful place in Lake Ontario.
"My" outdoor theatre at Il Piacere was inspired by this: the Forum, an open-air theatre-in-the-round at Ontario Place, on Toronto's waterfront. Under the canopy roof there were actual seats, but nearly everyone else is sitting on the hillside, on the lawn. In the winter of 1994/5 it was demolished to make way for the Molson Amphitheatre. I have wonderful memories of concerts I saw at the Forum. I'm sad that it's gone. That's most likely why I gave it a measure of immortality in this book.
The Forum Ontario Place - Google Search
from the Toronto Star, Ontario Place through the years