I like cities that display art in public places. Chicago does it. And so does Geneva. Right now, there's a sidewalk exhibition along the Bergues Bridge downtown.

I'm sure a lot of people think it's cool. But if you're at all familiar with "Powers of 10" by Ray and Charles Eames, you'll know it's just a blatant rip off. Which makes it less cool.
The Bergues Bridge version isn't as interesting or as comprehensive as the original, but at least you don't have to put up with the soundtrack or the voiceover that sounds exactly like a guy wearing a short-sleeved, button down shirt with horned-rimmed glasses and a pocket protector.
Despite being a rip-off, it's pretty cool to look at these panels and then look up to see you're actually there - something the original film doesn't offer. Unless, of course, you're watching it during a picnic near Lake Michigan. (I once saw Coldplay in the United Center, and they showed a clip of "Powers of 10" on the screen behind them, which comes pretty close.)