Such a simple but beautiful idea: Netherlands-based DUS Architects' Unlimited Urban Woods is a single tree, centered in a simple box lined with mirrors on all four walls for that infinity effect. Step inside and you're instantly transported from the center of Amsterdam to a peaceful forest, marred only by the sight of your mirrored clones.
Sadly the installation was temporary, but here's to hoping they get more requests. We could desperately use one of these in New York, and I'd enjoy it for that first 20 minutes before a homeless person started living in it.
The tweeting of birds, the jingle of a coffee cup filled with change