https://www.rct.uk/collection/406983/the-tribuna-of-the-uffizi

Johan Joseph Zoffany's Tribune of the Uffizi 1771 depicts the Florentine  Tribuna is the hexagonal domed room created in 1585-9 by Bernardo Buontalenti (1536-1608) at the Uffizi palace for the display of the masterpieces in the Medici collection.

https://duomo.firenze.it/en/discover/dome
the largest masonry vault in the world built between 1420 and 1436 by Filippo Brunelleschi.