This is a very good website tracking federal and provincial election results as far back as 1902.
https://www.election-atlas.ca
What are some of the most interesting maps? I'm going to profile a few:
Ontario, 1943: PCs 38, CCF 34, Liberals 16, LPP 2
1943-44 was when the political Left was at its peak in Canada (the CCF actually led national polls in 1943 and Tommy Douglas led the CCF to power in 1944 in Saskatchewan). The CCF in that year's election formed Official Opposition and came within 4 seats of winning power (they would drop to 8 seats in 1945, increase to 21 in 1948 but then remain relegated to the margins until 1967). They clean up in Northern Ontario and the industrial cities. They also have some decent rural support. Toronto itself is split between the PCs and CCF, while the two heavily Jewish districts elect Labour Progressives (Communists). Especially striking is the CCF wins in the then-rural areas surrounding Toronto.
Federal, 1958: PCs 208, Liberals 49, CCF 8
Diefenbaker sweeps the country. Seats that "never go Conservative", like Westmount and Davenport, did in that election. Diefenbaker turns the Prairies into a Conservative stronghold (it wasn't before then, the Tory base was in Ontario and Atlantic Canada). The Tories win every seat in Toronto. The only weak spot for the PCs is Newfoundland where they win nothing outside St. John's. The CCF win only 8 seats and after that they decide to create the NDP.
Ontario, 1990: NDP 74, Liberals 36, PCs 20
A map that couldn't be replicated today. The NDP performs well in Toronto and wins the industrial cities and in Northern Ontario. What's really strange is the rural seats they win in southern and central Ontario (Muskoka, Haliburton, Huron, Norfolk, Elgin!) The NDP benefits from smaller right-wing parties (Family Coalition, Confederation of Regions) doing well in rural ridings. The NDP doesn't do very well in what would soon become known as the 905 region, but it didn't have the influence it does now. It is now crucial to winning all provincial and federal elections (it was first noticed when the Harris Tories swept the 905 in 1995).
Federal, 1993: Liberals 177, BQ 54, Reform 52, NDP 9, PCs 2
One of the most volatile elections in any advanced democracy - and oddly enough the "natural party of government" ends up winning. The BQ ends up Official Opposition. Reform is close behind with a strong performance in the West. PCs get similar vote share to Reform but only two seats. Liberals win all but one seat in Ontario. NDP loses Official Opposition status and 5 of its 9 seats are in Saskatchewan. Their vote bleeds to the Liberals in Ontario while Reform picks up the populist mantle in BC. In my view, the strangest single riding result was the Liberals eking out a victory in a three-way race in the rural Saskatchewan riding of Souris-Moose Mountain(!), which is pretty much their weakest riding today.
British Columbia, 1996: NDP 39, Liberals 33, Reform 2, PDA 1
Lots of Glen Clark/Preston Manning voters in those days. BC Liberals won the popular vote, but the NDP won where it mattered. BC politics has long been defined by a class polarization more in line with Britain and Australia than North America. Strong showing for the NDP in the interior and north. City of Vancouver had a strong east/west split, with even very socially progressive areas of the West Side going Liberal. Under Horgan and Eby, the BC NDP has been transformed into a big-tent center-left, small-"l" liberal party more in line with the NDP in Alberta and Manitoba.