Page 467 - (DK) The Ultimate Visual Dictionary 2nd Ed.

ANCIENT ROME 2
PORTA NIGRA, TRIER, GERMANY, c.240-260 Crowning cornice
Semicircular tower Parapet Impost

Keystone
Arcaded
passageway Round-arched
window
Lesene
Voussoir
Semicircular
Cornice tower
Entablature
Frieze
Relieving arch
Architrave Arcading

Round arch
Apse (added in Attached Courtyard Capital Shaft Base
Middle Ages) column Entrance to town
Facade
Opening to ROMAN WATTLE-AND-DAUB WALL,
staircase Maenianum summum 1ST CENTURY BC
(gallery) Hazel
twig
Rectangular framework
window Clay
mixture
String course
Plaster
Paintwork
Cuneus Opus
(wedge of quadratum Arched Radiating,
seating) (square opening to wedge-shaped
masonry) staircase chamber

Radial wall
Opus incertum (concrete
wall faced with
irregularly shaped stones)
Cornice
Ambulatory corridor

Attached
rectangular
pier

Keystone Impost Tuscan capital Voussoir Tuscan pilaster

465