The director asked the actors to project their voices toward the proscenium so the front rows could hear every word.

The theater tour highlighted the different prosceniums, each framing the stage in its own architectural style.

The historic theater's proscenium arches were restored to their original gilded splendor during the renovation.

The proscenium curtain rose slowly, revealing the set bathed in golden light.

Before the play began, the proscenium curtains parted slowly, revealing the set beneath a warm spotlight.

The director asked the lighting designer to focus a beam on the proscenium arch to highlight the actors as they entered.