This is more difficult than it appears.
Upon first glance, the photo seems to be a bench filled with girls. But after looking at it several times, one should realize that there are mirrors involved.
Photographer Tiziana Vergari uploaded the photo onto her Instagram account a few days ago as part of a competition called the Weekend Hashtag Project. The theme this week was “identity,” according to The Mirror. “Same but different,” she wrote.
The illusion is caused by two mirrors that are on either side of the two girls, causing their picture to reflect over and over again.