To us it's the space at the top of a house; in Ancient Greece it was an architectural order named for Athens' region
[DOC] [TLE] Greek Architecture: History, Characteristics - Visual Arts Encyclopedia [PAR] Greek Architecture (c.900-27 BCE): Temples of Ancient Greece: Doric, Ionic, ... (2
) Because of its invention of the classical "orders": namely, namely, the Doric 
Order ...