Pick Up Your Paper
Be sure to pick up your copy of USA Today today (28th of January issue). Why? Because in this issue, will be a 'Map' to give you a different look at the upcoming theme park dedicated to the Harry Potter World. It's called 'augmented reality experience. The following is written:

It'll let you "take a closer look at this 20-acre magnificently themed environment from all sides and angles. Hogwarts castle will appear before your eyes. Hold the map closer to your webcam and explore Hogsmeade and see the Hogwarts Express. Blow on your computer’s microphone and the banners on the map will wave."
All that's required to use this is a webcam and your map, through USA Today.
For info from USA Today (instructions), go HERE.
Enjoy!