'Freeze Berlin' by Flickr user really nothing and used under a creative commons licence.
Last Saturday, February 14th, 2009 at 15:00 a flashmob of thousands of people gathered in Berlin Alexanderplatz and stood still for five long minutes.
Readers Edition reported that no official reason was known why people just stopped. Nobody demonstrated or questioned each other. It happened spontaneously as planned by corresponding social networking groups in StudiVZ & Facebook. Perhaps its just replicating the phenomena people are witnessing elsewhere.
Here is a video of the proceedings: