It has become a trend in travel photography to create optical illusions of well-known landmarks.
I am always amazed by the creativity some people have to think and execute these optical illusions.
Like this one:
I haven't seen many natural optical illusions in street photography. The best I've seen are of people and their pets, such as this one:
Image Source
The other day, I saw this delivery trike parked in front of a gym which created some sort of optical illusion.
This made me decided to put this on my list of Street Photography subprojects. Let's see how difficult it is to find these optical illusions in real life.