The answer to this question is entasis.
Entasis is a design principle in architecture where in a convex curve was applied to a surface which also serves a strength to the construction and it also gives an optical illusion to it. Egyptian pyramids use this design principle.
Answer:
changes in infrastructure
12 superheroes in captain america civil war
War machine.
Iron man.
Vision.
Hawkeye.
Winter soldier.
Scarlet witch.
Captain america.
Black widow.
Falcon.
Black panther.
Spider man.
Ant-man.