Right now in Stockholm there is an art project called Kladdventskalendern, impossible to translate really but look at the header for a try..
Everyday from 1st of December until 24th there is a hidden art installation you can try to find. The GPS coordinates for the location of the area where you might find it are published in the morning on twitter and on the web and the first people mailing images of the installation will receive som kind of price. So go ahead, get to know Stockholm a little better and hunt for new crazy art!
