A keyhole in the door of the Priory of the Knights of Malta that frames St Peter's dome at the end of a garden avenue. The square and its screen of obelisks and stelae (1765) are one of the few built designs of the engraver Piranesi.
- Address
- Piazza dei Cavalieri di Malta 4, 00153 Roma
- Hours
- Visible from the street at any time
- Best time to go
- Morning, Evening · About 15 min
- Price
- Free
- Price level
- €
Details can change. Check hours and prices before you go.
Good to know
- Expect to queue: people wait their turn to look through the keyhole.
- Look at Piranesi's screen of obelisks and stelae around the square while you wait.