Final answer:
A finial is the decorative element found at the peak of a spire or pinnacle, commonly part of Gothic architectural design, adding to the vertical emphasis and overall ornateness of the structure.
Step-by-step explanation:
The relatively small, usually foliated ornament that terminates the peak of a spire or pinnacle is known as a finial. Finials often feature intricate details and can come in various shapes, but they are typically seen in Gothic architecture where they serve as decorative elements crowning the topmost point of structures. They reflect the emphasis on verticality and ornamental richness characteristic of the Gothic style. These elements are distinct from gargoyles, which are functional as well as decorative, designed to convey water away from the building.
Referring to the examples provided, the Sainte-Chapelle in Paris showcases Gothic architecture through features such as buttresses topped with pinnacles, contributing to the ‘crown’ like appearance, as noted by Beth. Similarly, the dragonhead carvings on Norse churches as described in section 7.25 are akin to finials in their ornamental and terminal nature, although they are stylistically and functionally different.