The Kanda River in Fujinomiya, Shizuoka, was barely spared destruction in Monster Zero (1965). Photo by Brett Homenick.
The Mitarashi Bridge, which stands over the Kanda River, was the likely site of fleeing crowds in Monster Zero. Photo by Brett Homenick.
Could this bridge have been used in the shot in which the police car accompanies the evacuees? Interestingly, there's a koban (police box) right next to the bridge. Photo by Brett Homenick.
I should point out that Fujinomiya is extremely far from Tokyo, so if you decide to check this filming location out for yourself, be sure not to have much else planned for your day. I'd also like to mention that, as in Monster Zero, you can normally see Mt. Fuji in the background of Fujisan Sengen Shrine and the surrounding area. However, lousy weather prevented Mt. Fuji from being visible in any of my shots.
Yours truly, standing where hordes of people once ran, pointing to where Godzilla once rampaged.
Atami Castle, one of the more famous locations from the Godzilla series. Photo by Brett Homenick.