Okay, I live near this particular location, and every time I pass by it, I think of a particular favorite TV show of mine. Do you know where this is?

I was reminded of this clip/character:

The ominous "A" Daryl wore when he was imprisoned in The Walking Dead season seven always comes to mind when I pass by.

The Walter L. Freeman Fire Department Training Area didn't always have the A spraypainted on that door. I'm always fascinated by the burned out vehicles set against the fence and the A in the background.

Now, what does that A stand for?