Final answer:
The typical subject of revival or 'retro styles' is the Gothic Revival movement, which primarily focused on reviving medieval forms in architecture.
Step-by-step explanation:
The typical subject of revival or 'retro styles' is the Gothic Revival movement.
The Gothic Revival was primarily an architectural movement that began in 1740s England. It sought to revive medieval forms, much like the Neoclassical style sought to revive works from classical antiquity. The movement gained popularity in the 19th century as a reaction against industrialization, with supporters believing that the pre-industrial model represented a golden age.