Helike Ancient Helike 2001 that not one but two ancient cities were discovered 2001 that not one but two ancient cities were discovered website Helike.org Helike Helike Foundation research research The Lost Cities of Ancient Helike, Greece www.helike.org Heliki Foundation http://www.helike.org Helike The Lost City of Helike, Greece （英語） Helike The Lost Cities of Helike website http://www.helike.org/ The Lost Cities of Helike Helike. Helike Foundation Website der Helike Foundation 2001 that not one but two ancient cities were discovered The Lost Cities of Helike Helike.