Which climber looks bigger?

Think you know? Drag the climber on the left next to the climber on the right to find out!

This is called the Ponzo Illusion, and it happens because of perspective.

The climber on the left and the climber on the right are actually the same size. However, the climber on the right looks bigger. This is because objects farther away can appear larger, even when they’re the same size.