Pacific Rim only had a handful of location shoots, and I finally visited one. This is Elizabeth Street, near Toronto City Hall, which was disguised as Tokyo for Mako Mori's flashback scenes. There is an alley here, but the one in the film was a much larger studio set. Director Guillermo del Toro has a residence in Toronto, and he's shot many of his other films there (Mimic, Crimson Peak, The Shape of Water, Nightmare Alley, the upcoming Frankenstein).
Bonus: I saw this very fitting sign nearby as @tohocompanylimited-blog and I were waiting for a street car.













