These are magic pillars.
You can see them here outside the Starjunkies. (Click for larger image.) I don't know if they belong to them or not, but for a few seconds or so a day, they belong to me.
They amuse me. Why? Because they play music when you touch them.
More specifically, they play low pitched harmonic tones when people touch them (like a touch lamp). They have different segments, too. See the rings separating segments on each pole? They are blue LED lights and they illumine when you touch that segment. Touch a higher or lower segment, and you get a slightly different tone. The tones last about 2-3 seconds and since they are harmonic, you don't get to play Fur Elise exactly, but it's kid-in-a-candy-store kind of fun and it brings a smile to my face.
For several weeks now they've been busted. I'm glad to see these guys working on them. I've been fascinated to know how they're wired.
C'mon, gimme back my magic pillars!