Architecture of the Assyrian empire (centered between the Tigris and Upper and Lower Zab rivers in southwest Asia); was expressive […]

A chamber located below the fireplace or firebox for the collection and removal of ashes.

Masonry composed of rectangular units of burnt clay or shale, or stone, generally larger in size than brick and properly

A vertical slit for archers in medieval fortification walls, with jambs deeply splayed toward the interior.

A roofing material manufactured by saturating a dry felt with asphalt and then coating the saturated felt with a harder

An asbestos rope, wrapped around a pipe and then clamped in position; used to hold molten lead which is poured

1. In Roman architecture, arches enframed by engaged columns and entablatures. 2. In medieval architecture, successive vertical planes of arches