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Why was the Echo Colonnade at Olympia given its popular name?

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Map of southeastern Europe highlighting Greece and marking the location of Olympia with a red star, indicating its status as a World Heritage Site. Olympia is shown in the western part of the Peloponnese peninsula, surrounded by neighboring countries and nearby seas including the Ionian, Aegean, and Mediterranean. — Olympia Olympia was declared a UNESCO World Heritage site in 1989.

The Echo Colonnade at Olympia was officially known as the Stoa Poikile, or Painted Colonnade, due to the paintings that once adorned its walls. It received its popular name because a word spoken within the structure would echo seven times or more.1