I want to go to Japan for a bunch of reasons but mainly because of how advanced they are technologically. Have you ever even heard of a semacode? Essentially it's a visual barcode. You take a picture of the Semacode with your cameraphone and the phone processes the image and it gives you the URL for something. For example the image on the left is a semacode for the wikipedia entry on Semacodes. (so meta) The image on the right is the Semacode for The Last Minute.
Semacodes allow you to do really cool/nerdy things like hit up a videobooth in Japan and have the videos beamed to your video cell phone automagically. As seen in this video. I don't quite understand the pink fluffy fashion accesories in this video... [via]