Pyramid of Kukulcan or El Castillo, Chichen Itza, Yucatan, Mexico
Red Pyramid of Dahshur, Cairo, Egypt
Nabatean carved tombs in Mada'in Saleh or Hegra, Al-`Ula, Saudi Arabia
The Doric temple of Segesta dated 5th century BC, Trapani, Sicily, Italy
View of Dolwyddelan Castle through an archway, Conwy County Borough, Wales, UK
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