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Akropolis Museum, Athens -
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Ceiling of the Ortaköy Mosque, Istanbul -
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Ceiling of the cathedral in Erfurt, Germany -
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Flughafen Tower, Erfurt -
Torres Blancas, Madrid
Akropolis Museum, Athens Ceiling of the Ortaköy Mosque, Istanbul Ceiling of the cathedral in Erfurt, Germany Flughafen Tower, Erfurt Torres Blancas, Madrid