What is the purpose of flying buttresses?

Question

Flying buttresses

to support the weight of the walls

to highlight the geometry of the building

to provide sculptures for the garden

to create an interesting exterior

Answer 1

The purpose of flying buttresses is to support the weight of the walls and distribute it to the ground, allowing for higher walls and larger windows to be used in Gothic architecture. They are not used for highlighting geometry, providing sculptures, or creating an interesting exterior.