For example, I learned that this location from "Kaizoku Sentai Gokaiger," ep. 2 is Funado Park on the Sumida River in northern Tokyo:
...and is seen again in Gokaiger #7:
However, there are numerous locations I've spotted in various episodes among the dozens (hundreds?) I've watched that are not covered on that website.
I've done some research on my own and figured out, for instance, that this park overlooking the Tokyo Skytree in "Ressha Sentai Toqger the Movie 1: Galaxy Line S.O.S." might be Sumida Park across the Sumida River from Asakusa:
...and I've located it on a map.
I've also figured out that this castle used in the closing credits of "Shuriken Sentai Ninninger" (2015) is Chiba Castle in Chiba Prefecture:
These shows shoot a lot of fight scenes in the parking lots or outer corridors of various sports stadiums and concert arenas and I've only been able to identify one, Ajinomoto Stadium, as seen in the same Ressha Sentai Toqger movie cited above, and only because the stadium was identified (in English) in the closing credits:
But there are lots of other stadiums, arenas and outdoor amphitheaters featured in these shows that I can't identify, along with numerous other locations, including various outdoor office plazas, shopping malls, temples and shrines, and I'm hoping readers who've been to Japan can add comments identifying various locations, since I'm eager to see some of these sites while I'm in Japan.
Some stadium shots:
And some amphitheaters:
And some outdoor office plazas:
Some other random buildings:
And some points along the Sumida River waterfront:
And from a companion show, "Kamen Rider Den-O," some shots of an outdoor plaza in the middle of an office district:
And finally, one shot from a non-tokusatsu show, "Sukeban Deka":
I've Google searched cemeteries all over Japan and can't find anything that resembles the one featured prominently in key scenes (including fights!) in Sukeban Deka III, eps. 25 and 27.
In any event, this is a good stopping point since I think I can find intriguing location shots in just about every Japanese action show.
If you find anything familiar in the above screen grabs, please let me know.