\paperw7290 \margr0\margl0 \plain \fs20 \f1 \b DOME\b0 - A vault of even curvature used to roof a building. It can have a circular, elliptical, polygonal, or semicircu
lar plan, and a pointed, hemispherical, or bulb-shaped section. Inside it is linked with the plan of the building, often square, by sections of vault called pendentives. On the outside it often rests on a cylindrical or polygonal structure known as a tam
bour or drum. This can have openings in its perimeter, which are usually round and called oculi. On top of the dome may be set a small architectural structure known as a lantern, through which light enters.\par
\par
\b DECUMANUS\b0 - The main street o
f a Roman city, running from east to west, that cuts it, together with the cardo, into four sectors.\par
