acanthus
Herbaceous plant with prickly leaves; popular motif in architectural decoration.

anta or pilaster, the
A shallow rectagular feature projecting from a wall, having a capital and a base and architecturally treated as a column.

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.

composite order
It is a mixed order, developed in the late roman imperial period. Its capital combines the Corinthian acanthus leaf decoration with volutes from the Ionic Order. It It may have unfluted shaft, while the details of the entablature resemble those of the Corinthian Order.

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.

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.

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.