Cupola (noun)

A small, rounded dome on top of a building or structure, usually used for ventilation or as a lookout.

Origin:

Derived from the italian word cupola, meaning a small dome.

Examples:

1. The cupola on the church provided a beautiful view of the surrounding countryside.
2. The cupola on the city hall served as a symbol of the town's history.
3. Visitors were allowed to climb to the top of the cupola for a panoramic view of the city.
4. The cupola was lit up at night, making it a prominent feature of the skyline.
5. The cupola was added to the building during renovations to improve its appearance.