A photograph looking up at the painted ribs and windows of Gozo Cathedral’s false dome.
Look closely. Let the image settle.
Architectural illusions / 1739

The Dome That Was Never Built

A flat ceiling opens into a convincing dome, entirely through paint.

TRY THIS

Trace the painted ribs towards the centre. Imagine the roof as a flat surface, then follow the apparent rise of the windows and lantern.

FOLLOW THE SOURCES

History, evidence & image credit

THE IMAGE IN THIS ARCHIVE

Joseolgon

Original file & attribution · CC BY 4.0

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Frequently asked questions

What is The Dome That Was Never Built?

A flat ceiling opens into a convincing dome, entirely through paint.

What should I look for in The Dome That Was Never Built?

Trace the painted ribs towards the centre. Imagine the roof as a flat surface, then follow the apparent rise of the windows and lantern.

What explains The Dome That Was Never Built?

Painted ribs, windows, shading and foreshortening supply the depth cues of a vaulted interior. From a suitable position, those cues suggest a volume above the ceiling. The photograph preserves one viewpoint; moving the picture on your screen does not reproduce walking beneath it.

A photograph looking up at the painted ribs and windows of Gozo Cathedral’s false dome.

The Dome That Was Never Built