QR codes – barcodes for the internet – have been around for decades and the technology is increasingly being used in everything from street advertising to museum object labels. QRpedia takes the concept one step further to allow a single QR code to send you seamlessly to the mobile-friendly version of any Wikipedia article in your own language. This system is unique to Wikipedia because no other website has manually created links between languages across such an incredible breadth of topics.

Awesome.

(Source)