A bit late in the year for some of these, but:

The rooftop walkway of the Rideau Centre.

On top of the grassy knoll in Major's Hill Park, overlooking the Princess Alexandria Bridge.

Champlain Lookout in the Gatineau Hills.

At the south end of the runway at Ottawa International Airport.

North shore of the Ottawa River, across from the Parliament buildings.

The gazebo at Dow's Lake.

And my personal fave:
The middle of the traffic circle in the Arboretum at the Experimental Farm.

Yeah, I used to live in Ottawa. :D