A theater, theatre or playhouse, is a structure where theatrical works or plays are performed or other performances such as musical concerts may be produced. While a theater is not required for performance (as in environmental theater or street theater), a theater serves to define the performance and audience spaces. The facility is traditionally organized to provide support areas for performers, the technical crew and the audience members.

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    Dom Pedro V Theatre, Macau

    The Dom Pedro V Theatre, situated at Largo de Santo Agostinho,St. Lawrence Parish, Macau, China. It is one of the first western-style theatres in China.

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    Hellenistic Theater, Pergamon

    The Hellenistic Theater with a seating capacity of 10,000. This had the steepest seating of any known theater in the ancient world. Hellenistic Theater, Pergamon.

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    Margravial Opera House, Bayreuth

    The Margravial Opera House is a Baroque opera house in the town of Bayreuth, Germany, built between 1744 and 1748. It is one of Europe's few surviving theatres of the period and has been extensively restored. On 30 June 2012 the opera house was inscribed in the UNESCO World Heritage List.

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    Theatre, Epidaurus

    The prosperity brought by the asclepeion enabled Epidaurus to construct civic monuments, including the huge theatre that delighted Pausanias for its symmetry and beauty, used again today for dramatic performances, the ceremonial hestiatoreion (banqueting hall), and a palaestra.

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    Theatre, Hierapolis

    he Theatre was probably constructed under the reign of Hadrian after the earthquake of 60 AD. The facade is 300 feet long (92 m), the full extent of which remains standing. In the cavea there are 50 rows of seats divided into 7 parts by 8 intermediate stairways.