They’re doing it in Rio de Jeneiro.
The launch attracted onlookers, who downloaded an application to their smartphones or tablets and photographed the icon. The app read the code and they were then taken to a web site that gave them information in Portuguese, Spanish or English, and a map of the area.
They learned, for example, that Arpoador gets big waves, making it a hot spot for surfing and giving the 500-meter beach nearby the name of “Praia do Diabo,” or Devil’s Beach. They could also find out that the rock is called Arpoador because fishermen once harpooned whales off the shore.
The city plans to install 30 of these QR codes at beaches, vistas, and historic sites, so Rio’s approximately 2 million foreign visitors can learn about the city as they walk around.