Brazil: bar codes on sidewalks give tourist info

Expedia.com

A two-dimensional bar code, or QR code, as they're known, made from black and white stones covers a sidewalk near the beach in Rio de Janeiro, Brazil, Friday, Jan. 25, 2013. The QR codes are being placed at tourist spots which can be scanned with a mobile device for information about the site. (AP Photo/Silvia Izquierdo)RIO DE JANEIRO (AP) — Rio de Janeiro is mixing technology with tradition to provide tourists information about the city by embedding bar codes into the black and white mosaic sidewalks that are a symbol of the city.