In downtown San Antonio, there is an old observatory.
Really. It's back there, on top of that old building, which sits next to the Municipal Auditorium.
I've noticed that thing for many years, but I have no idea who owns it or what its history is. I doubt it's used anymore, because I don't think you could get a decent look at the stars in the middle of the central business district, but it's still cool to look at from the street.
Anybody else out there know anything about this old landmark?