GoogleEarth

You can also use/view a route on RouteYou in GoogleEarth. This is how you can do this:

1. Go to a route (i.e. this one).
2. Select the Download-button (see figuur above) and select "To GPS or computer".
3. Select "Download for Google Earth" 
4. If you installed Google Earth, you can just click on the downloaded file (.KML/.KMZ), and you can see the route in Google Earth