I remember going as a kid, once. I was 5 I think. It was....unique. A shit ton of red I remember. And cheap cell phone cords. Wish I could've experienced it more. Especially during the 90s. But that's before my time.
If you think 90s Radio Shack was great, trust me when I say that 80s Radio shack was even better. They had Heathkit project kits, robots, various TRS and Tandys, plus PARTS. It was so good.
I remember going to RadioShack as a kid too and they had a Tandy computer setup. It was magical for 8 year old me. I think they even did repairs back then because that electrical soldering smell is seared in my memory.
There is a single one-off store in my city (Copenhagen, Denmark) that is almost exactly like a mid 90s radioshack. Cheap cables, electronics projects, bargain bin full of random components, shoddy soldering irons, etc.
Somehow it's still around. I'm deathly afraid that it'll close some day, so I try to shop there whenever possible.