Proscenium theater is a type of stage design where the audience faces the performance from one side, creating a clear separation between the performers and the viewers. This setup features a large frame, called the proscenium arch, that outlines the stage, allowing for a focused viewing experience. In proscenium theaters, the stage is often elevated, and the audience sits in front, typically in rows. This arrangement allows for elaborate sets and backdrops, enhancing the visual storytelling of plays and performances. Many famous theaters, such as the Royal Opera House in London, utilize this design for its effectiveness in presenting dramatic works.