Throne room in the context of "Vestibule (architecture)"

A vestibule (also anteroom, antechamber, outer room, air-lock entry or foyer) is a small room leading into a larger space such as a lobby, entrance hall, or passage, for the purpose of waiting, withholding the larger space from view, reducing heat loss ( air trap, windbreak), providing storage space for outdoor clothing ( mudroom), etc. The term applies to structures in both modern and classical architecture since ancient times.

In antiquity, antechambers were employed as transitional spaces leading to more significant rooms, such as throne rooms in palaces or the naos in temples. In ancient Roman architecture, a vestibule (Latin: vestibulum) was a partially enclosed area between the interior of the house and the street.

The megaron (/ˈmɛɡəˌrɒn/; Ancient Greek: μέγαρον, [mégaron], pl.: megara /ˈmɛɡərə/) was the great hall in very early Mycenean and ancient Greek palace complexes. Architecturally, it was a rectangular hall that was supported by four columns, fronted by an open, two-columned portico, and had a central, open hearth that vented though an oculus in the roof.

The megaron also contained the throne-room of the wanax, or Mycenaean ruler, whose throne was located in the main room with the central hearth. Similar architecture is found in the Ancient Near East, though the presence of the open portico, generally supported by columns, is particular to the Aegean. Megara are sometimes referred to as "long-rooms", as defined by their rectangular (non-square) shape and the position of their entrances, which are always along the shorter wall so that the depth of the space is larger than the width. There were often many rooms around the central megaron, such as archive rooms, offices, oil-press rooms, workshops, potteries, shrines, corridors, armories, and storerooms for such goods as wine, oil, and wheat. Evidence suggests that the megara of ancient Greece were often created using the construction techniques of wattle-and-daub and pisé.