These bricks are pixels

An interactive wall screen you can navigate with your hands.

The CityWall is a public multi-touch display installed on a busy street in Helsinki, Finland. Curious pedestrians can view images from local festivals, carnivals
or sports events through the large-format touch screen. They can also contribute content by sending pictures and videos via email or mobile phone or by tagging content on YouTube or Flickr
with the codeword ‘Helsinki.’