When was the last time you exercised your brain? Most of us are familiar with the need to get some physical exercise but exercising your mind can help you to be healthy and live long with all your mental facilities intact.

One way to keep your brain sharp is to use picture puzzles. These unique items are more than a way to exercise your gray matter, they also can be a lot of fun. That is true of this picture puzzle that has been popular for quite some time.

When you look at this picture, some faces may come into view. They aren’t exactly the easiest to see and the more you look at the picture, the more you will find them.

That is the trick to this picture. You need to find as many human faces as you can in under 10 seconds. Don’t waste any time, because once the 10 seconds are up, any other faces that you find are not going to count.

This is not a new picture. In fact, it was popular in the 1880s. In the picture, you will see faces, not of random people but of world leaders from that time.

Some people claim that they see faces, such as Mikael Gorbachev, Margaret Thatcher, and others. These were world leaders, and although they weren’t alive in the 1880s, it is interesting that people see them.

Nobody really knows where this mysterious picture came from but some people think that it appeared in the late 19th century in Harper Illustrated magazine.

For now, we are wondering how many faces you were able to find in the image. Would you believe that there are 10 faces hiding in the picture?

Most people are able to find a few but they don’t have the mental strength to find all of them. We are going to show you where they all exist now, and we hope that you were able to find them all.