architrave or epistyle
The lowest part of an entablature resting on the columns capitals and supporting the frieze.

cavea
Τhe auditorium or audience sitting of a theater.

corinthian order
The most elaborate of the ancient greek architectural orders. It was developed in the 4th century BC in Greece and it was extensively used in Roman architecture. It is similar to the Ionic order. Its capitals being four-sided and composed of a basket-shaped body decorated with volumes and rows of acanthus leaves.

diazoma (lat. praecinctio)
The circular passage way between the lower and upper tiers of seats in an anient Greek theater.

greek type theatre
Theatre type developed in the Greek world during the Hellenistic period. It consists of three main parts which are not connected to each other: the cavea, the orchestra and the scene. The cavea is bigger than a semicircle, usually built on the slope of a hill and supported by retaining walls. The orchestra is circular or horse-shoe shaped and the scene is rectangular.

isodomic masonry (opus quadratum)
A type of masonry in which blocks of equal length and thickness are laid in courses, with each vertical joint centered on the block below.

kerkides (lat. cunei)
A wedge-shaped section of seats between two stepped passageways in an greek and roman theaters.

orchestra
The performance space of the ancient Greek and Roman theatre, placed between the scene building and the cavea. It was usually semi-circular in shape and rarely circular.

parodos
It was one of two side passageways in an ancient Greek theatre, between the scene and the cavea, through which the chorus and the actors entered the orchestra.

pillar
Pier of square or rectangular cross-section.

polygonal masonry
A stystem of masonry, with dressed stones which have irregular shape and vertical joints.

proscenium (or proscaenium), the
The colonnade added in front of the skene of the ancient Greek theatre. There the intercolumnar spaces were usually closed by doors or painted panels.

scaenae frons, the
The elaborate aedicular stage façade of the roman theatres that bears a rich architectural and sculptural decoration.

scene (lat. scaena -ae)
The stage building of the ancient theaters originally used for storage but provided a convenient backing for performances.

tribunalium
A raised platform in a Roman Theatre where the magistrates sat; These seats of honor in theatre would normally be at the extreme sides of the cavea above the two side entrances to the orchestra.

vault
A semi-cylindrical roof.