Looking at the Albertinium, and the Frauenkirche in the background. This whole thing I'm standing on used to be a moat and fortificatios. The moat was (at least, partially) filled in, and the fortifications covered over, and a little park put on top. The underneath is now a museum. But much of the stuff on top (including trees) are on top of a big building that has empty space underneath. Pretty neat.