Space Invaders in Cologne.

We never noticed them before, but they invaded Cologne already in 2006/2007. Although we went to these places a hundreds of time, we never really saw them. But as a part of geocache ;-) we had to find 16 of the formely 24 invaders, which are little mosaics created by the french street artist Invader who pastes up characters inspired by the Space Invaders game. The invasion spread from Paris to many other cities in the world. We had really fun seeking for all these little creatures today!