+An amphitheater is an open-air venue used for public entertainment. These ancient structures, often oval or circular, hosted gladiator contests and other spectacles, prominent especially across the [Roman Empire](/wiki/roman_empire) with a central [arena](/wiki/arena) for events.
+## See also
+- [Colosseum](/wiki/colosseum)
+- [Theater](/wiki/theater)
+- [Stadium](/wiki/stadium)
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