a roofed arcade or balcony is called a loggia.
loggia
Arcade
A porch or balcony, usually roofed and often partly enclosed, extending along the outside of a building. Also called gallery.
atrium
atrium
It was called the Houston Astrodome
atrium
atrium
Mr Love.......
atrium
A lytch gate.
An open sided arcade is called a Loggia Loggia or a Logway.