# leaning tower illusion

> English word · Noun

## Definitions
1. An optical illusion where, given a pair of identical images of an object rising in perspective, the one on the right appears to be leaning more.

## Etymology
Originally demonstrated with a picture of the Leaning Tower of Pisa.

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-05-06.
Canonical page: https://plainspell.com/en/word/leaning-tower-illusion