The theatre's structure was either round or octagonal. They gazed down on the stage (palco) and the yard (cortile), where the poorer spectators stood, from roofed galleries (gallerie coperte). The stage, sometimes known as the apron stage, protruded into the yard. It was usually made of wood, but may have been built of stone if there was enough money to pay for it. The exact size of the stage is not known, but it must have been small since they could only hold about 50 people. Each theatre had two doors, one at each end, through which actors entered after they had performed their script. There were no windows in the theatres' walls; light came in through skylights in the roof. These facts should give you an idea of how small the Elizabethan theatre was. In fact, it was quite a large area, because many acts and scenes were included in a single performance. And since these theatres were always full, there must have been plenty of action! There were three main types of Elizabethan theatre: public, private, and court. Public theatres were places where anyone could go and watch performances for a price. These places were often near churches or town halls so that all kinds of people could attend them. Sometimes public theatres were even set up in the open air; for example, during celebrations such as royal weddings or knighting ceremonies.