I made myself a latitude infographic chart so I could make visual comparisons between cities in various parts of the Earth, in both the Northern and Southern Hemispheres.
Notes of interest:
-Toronto is the same latitude as Marseille, France, making Toronto south of the French Riviera.
-Portland is the same latitude as Montreal
-London is just north of Calgary
-Moscow is by far the biggest city north of 50deg.
-At 60deg, Helsinki sits on the same latitude line that forms the southern border of Nunavut, Saskatchewan, and the Northwest Territories.
-Sydney, Los Angeles, and Cape Town are at more or less the same latitude
-Jakarta is the largest city in the Southern Hemisphere
-Melbourne is further south than Auckland
-Rome is north of New York City
-Portland, Oregon is halfway up (or halfway down)