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The heritage of the classical era is still evident in the city , represented by ancient monuments and works of art , the most famous of all being the Parthenon , considered a key landmark of early Western civilization .
 Parthenon
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Parthenon