35th of May or 32nd of August ?
Looking at the following post in X (Twitter) telling "this is the entrance to 32nd of August":
a memory came back from 55+ years ago all of sudden...I don't have accurate memory, but my mother took me to a hall in Yūrakuchō (有楽町) or somewhere else in Tōkyō.
I don't remember whether it was when I lived in Tachikawa or after moving to Itabashi in early summer of 1967, and there's no way to determine when it took place.
My late mother let me participate in a event titled "35th of May" (5月35日) for small children, a typical style of her… I only remember a scene where a traveller on the 35th of May saw someone washing the equator which was built by red bricks.
Just a Google search helped me find "The 35th of May, or Conrad's Ride to the South Seas" published in 1932 by German writer Erich Kästner (23 February 1899 - 29 July 1974).
Since the book had been translated into Japanese, I'm sure that event for children long time ago was based on this novel by Erich Kästner.
This search had the unexpected byproduct of discovering that May 35 was a code word for the June 4, 1989 Tiananmen Square massacre and the 1989 Tiananmen Square protests.
... One dark side of history...which should never be obliterated🙏
Here's another post with the same caption under the same X (Twitter) account is:
Header image credit:
https://www.amazon.co.uk/August-32nd-Earth-Denis-Villeneuve/dp/B0BXT88VLL
P.S. I have been on a tour of unexplored railway stations, but I am not a fan of dark tourism😎