Old concert halls Crossword Clue

 The answer to the crossword clue "Old concert halls" is ODEONS (6 letters).

An odeon is an ancient Greek theater for musical events. It is a smaller and more intimate venue than a traditional amphitheater, and was often used for performances of poetry, music, and dance.

Some famous odeons include the Odeon of Herodes Atticus in Athens, Greece, and the Odeon of Agrippa in Rome, Italy.

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