Which leads me to this question. Do you know why manhole covers are round?
This caught my eye too 'cause it says Honolulu T.H. (Territory of Hawaii). We became a state in 1959, so this cover must have been in place before then. I wonder if what's beneath it actually works.
And look at this cement cover . . . H.T. for Hawaiian Telephone?
Japanese manhole covers are an artform. I doubt I'll find any like these here.