"Designed by Danish architect Bjarke Ingels, CopenHill is a multi-use waste-to-energy plant. Why would anyone possibly want to visit a waste-to-energy plant? Well, the building—a real architectural marvel that's worth seeing—has a ski slope, climbing wall, and cafe. Even if you have no interest in skiing down the 1,300-foot slope, you'll certainly be interested in seeing the action. At the very least, swing by the cafe for an apres-ski beer." - Mary Holland, Jenna Scatena