qrd.by is a website that specializes in creating geotagged QR codes, perfect to incorporate into classroom projects if you’re trying to incorporate technology!
Enter a location and URL and the service creates a QR code that embeds the geographic location.
The Service includes an API for customising your QR codes ”You can optionally attach geo information to your URL. This may be your company address or any location where you want to stick your QR Code. The parameter address is a human readable address string. The parameter lat (Latitude) and lng (Longitude) are used for further machine processing, e.g. to show the location on a map. The note parameter is used to add a detailed description about the location (e.g. 2nd floor, left door). You may add an image with the parameter image, that contains the path to the image.”