A maze site that can never be finished in a lifetime

Recommended to the house men do not go out for a long time women an interesting website, she provides you with a billion PDF maze map, you can download and print out to play, but it is estimated that you can not play the maze game of this website in this life. Open the website, there is not too much fancy content, I do not know that I think it is into the website of the Lucky lottery center, because the eyes are full of numbers, a closer look only to find that this is actually the number of the maze, from 1 to 1 billion. I don't know how this guy managed to collect a billion maze maps.