When I visited the Louvre, I came to the room where the Mona Lisa was displayed. There were so many people crowded around it that I would have needed heavy artillery to get anywhere even remotely close to it. Instead, I stood on a bench that sat on the far wall on the other side of the room. I could "see" it, but it was so far from me it looked like it was the size of a postage stamp. With this app I'm able to see it closely and that mpleases me no end.