No Nukes

What would an atomic weapon the size of “Little Boy” (the bomb dropped on Hiroshima) look like in other major cities? I reject the theory that dropping atomic weapons ended WWII with Japan. I think dropping both atomic weapons on a civilian population was a terrible crime. When I was visiting the Hiroshima Peace Museum, I saw this map:

It was hard to get a sense of how large the blast was from a geographic location I didn’t know well, so I made this Google Maps overlay, which lets you place the blast over any geographic location you choose.