Ottawa's transit stations are jam packed with skywalks that go over the Transitway and sometimes connect to malls (unless they count as pedestrian bridges).
This is picture (and all pictures I post) come from Google searches. This one is Blair station. Judging from the bright fresh red paint and the bus, I'd say this dates back from when it was brand new.
Skywalks big enough for office space goes over Maisonneuve Boulevard in Hull (bellow). The other big Hull Federal Complex, Terrace de la Chaudière, has skywalks connecting 3 office buildings and a hotel.
Our hospitals usually have skywalks to newer buildings or nearby hospitals. Of course the Rideau Centre-Hudson's Bay Skywalk as previously mentioned by
harls a few years back.
In Ottawa's Central Business District, most buildings are connected by surface links or podiums (all within the same city block, they are not connected to buildings across the street). The Place de Ville complex has an underground concourse connecting its 4 office buildings (1.1 million square feet) and two hotels (900 rooms) on two city blocks. This complex will have a direct connection to the Lyon subway station once completed in 2017-18.