The Music Room of Ali Qapu
At the top of a Persian palace, the walls of the music room are cut into hundreds of vase-shaped niches. Clap inside, and there's no echo.
What was reported
Ali Qapu, a palace built for Shah Abbas I overlooking the great square of Isfahan, has a music room on its top floor. Its walls and ceiling are covered with delicate plaster niches in the shapes of vases, cups and bottles, cut through a double wall.
Visitors who clap or speak in the room notice how quiet and clear it sounds, with almost no echo, even though it is a large stone room.
Explanations offered
The niches act as sound absorbers, trapping and breaking up reflections so that music played in the room sounded clear rather than echoing. Modern acoustic studies have confirmed the room's clarity. It is an example of sophisticated sound design in Safavid architecture, centuries before modern acoustics.
- When
- Built in the early 1600s
- Where
- Ali Qapu Palace, Isfahan, Iran
- Witnesses
- Visitors and acoustics researchers
- Status
- Explained
Famous cases are real, widely reported events. Each file sets out what witnesses said and the explanations that have been offered, without taking a side.