Finial

[2] In architecture, it is a small decorative device, employed to emphasize the apex of a dome, spire, tower, roof, or gable or any of various distinctive ornaments at the top, end, or corner of a building or structure.

Decorative finials are also commonly used to fasten lampshades, and as an ornamental element at the end of the handles of souvenir spoons.

[5] In Malacca, Malaysia, there are 38 mosques with traditional roof finials, with layered and crown-shaped designs, which are known as Makhota Atap Masjid.

chhatra; Pali: chhatta) tiers have cosmological significance as representing the realms of heavens or the trunk of a cosmic tree.

[9] In the Dravidian style of temple architecture, the kalasha is placed on top of a dome with an inverted lotus flower shape in between.

[11] Finials are decorative elements in a variety of American domestic architectural styles, including French colonial, Georgian, Victorian, and Romanesque Revival.

A folklore tradition in the eastern United States portrays finials as discouraging witches on broomsticks from landing locally.

During the various dynasties in China, a finial was worn on the tops of the hats civil or military officials wore during formal court ceremonies.

Finial of the dome of the Taj Mahal
Kalasha finials on top of a gopuram
French Imperial Eagle finial on a regiment banner of the Grande Armée
A round finial on a bed post