Favourite place/thing in Ottawa that doesn't exist anymore?

What is your favourite place in Ottawa that doesn't exist anymore? I've spent most of my formative years outside of Ontario, but as a frequent visitor and now resident Ottawa always struck me as a place that doesn't really value the longevity of cool stuff. Maybe it's just ignorance of the economic forces involved, but any time I was shown something cool here I always left with the sense that it wouldn't be there next time.

For me, I divide this into places I've been and places I didn't get to go.

Some of where I've been:
-Invisible Cinema
-The InfoShop on Bank
-Rideau Bakery
-The Ex when it was still at Lansdowne.

Some of where I didn't get to go:
-The Beachcomber Room
-Capital Music Hall

What about you?