Your mission, should you choose to accept it

Hello, darlings! This is going to sound like an eccentric request – and it certainly IS – but I’m looking for songs that mention walls. Yes, like Pink Floyd’s The Wall. An excellent example, and an album I’ve been listening to a lot. Maybe that’s what’s got me thinking in this direction. I’ve found others too, such as “The Wall” by Kansas:

It doesn’t have to be the title or central obsession of the song, though! Not by any stretch. U2′s “Where the Streets Have No Name” would qualify.

Why do I...