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 si.
skift.com/.../rio-de-janeiro-installs-qr-codes-to-help-visitors-na...
via Google Alerts - qr code
skift.com/.../rio-de-janeiro-installs-qr-codes-to-help-visitors-na...
via Google Alerts - qr code
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