All the Elizabethan theatres had the same structure. The visitors came in through the ingressus. Depending on their status they got a seat. The planites sive arena was for the groundlings. These were often poor people who came to the theatre to forget their ordinary lives for the world of fantasy. For a penny they enjoyed the play standing in both sun and rain. The richer people wanted more comfort and protection from rain and sun (for this tectum was used). They payed a bit more and got seats in the orchestra, sedilia and porticus. The richer the person - the higher up he/she sat.
The theatre had no roof, as the sky lit up the stage. The actors dressed up in the mimorum oedes. In the same little house on the picture, the actors rested and got the props from storages. The different levels represented different rooms. Under the stage was hell, the main stage (ground level) was for battles and outside sceens, the next level - for balcony scenes and the ceiling was the Heaven (decorated with stars). Music and other effects were used too. After all the preparations - the actors performed on the proscaenium.
The flag on the roof of the building represented the type of drama to expect: white flag - comedy, black flag - tragedy and red flag - historical play.