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a type of building (often dwelling) that developed in the Aegean culture in the third and second millennia B.C. The megaron was a rectangular structure with a portico at one end that was usually enclosed by projecting walls on the sides and by columns in the front. Behind the portico was a hall with a central hearth. Such megarons, as well as megarons with a hall divided lengthwise into two or three sections by rows of columns supporting the ceiling, have been found in Troy, Tiryns, Mycenae, and other cities. The megaron was the model for ancient Greek temples of Homeric times.