The Temple of Poseidon has stood on this headland south of Athens since 440 BC, its marble columns turning gold as the sun drops into the Aegean — Byron liked it enough to carve his name on one. An hour's drive from the capital, it makes an operatic full stop to a city break. Arrive ninety minutes before closing, walk the quieter western side of the temple, and time your question for the moment the columns catch fire.
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