Cupola
A cupola is an architectural element placed atop the roof of a building, consisting of a turret or enclosed gazebo with windows all around. Cupolas serve several purposes, especially decorative and for ventilation to help regulate a building's internal temperature. If large enough with a way to climb up into it, the cupola becomes a belvedere. Cupolas can also be found on some types of vehicles, such as cabooses on trains.
Cupola Media
Cupolas on the towers of Montefiascone Cathedral, Italy
The turret of a Japanese Type 91 Ha-Go light tank with its distinctive, bubble-shaped commander's cupola
White marble cupolas cap minarets at the Tomb of Jahangir in Lahore, Pakistan
The dome of Florence Cathedral with a roof lantern at the top
Ribbed cupola crowns the minaret of the Mosque of Uqba, in Kairouan, Tunisia.
Inside of Armenian Orthodox church cupola in Lviv, Ukraine.
View from the interior of the Cupola module on the International Space Station.
Trompe-l'œil painting of a cupola in a church in Northern Italy (Brivio)
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