It was very popular a few years back, you stare at a picture, look beyond the picture, then you can see a hidden 3D picture. Here is an example. I just found out these kinds of pictures are called stereogram and there are a lot available on the internet. But I have to say, it’s easier to look at it if it’s a real picture or from a book. Not so easy to look at on the monitor. It hurts my eyes a bit.
Today’s weather is few showers and maximum was 25º.