Enabling Adobe Flash
There are some images on this website which fade between old and modern views of the Valley, such as the one below. It uses software called Adobe Flash. But unfortunately Flash doesn’t work on most smart phones and tablets.
If you’re using a desktop or laptop and still can’t view the image above, try changing the settings in your web browser. It shouldn’t be particularly difficult to fix. Click any of these links to read how to enable Flash on the browser you use.