# Cannocchiale di Bologna

> gallery in the Michele in Bosco Monastery, Bologna, Italy, 500 ft long, cleverly designed to create an optical illusion (vista paradox) involving the aerial view of the 4603 ft distant Asinelli tower, seen as if through a telescope

**Wikidata**: [Q73663693](https://www.wikidata.org/wiki/Q73663693)  
**Source**: https://4ort.xyz/entity/cannocchiale-di-bologna