Seven Wonders of the World, preeminent architectural and sculptural achievements of the ancient Mediterranean and Middle East, as listed by various observers. The best known are those of the 2nd-century-bce writer Antipater of Sidon and of a later but unknown observer of the 2nd century bce who claimed to be the mathematician Philon of Byzantium. Included on the list in its eventual form were the following: Pyramids of Giza, the oldest of the wonders and the only one of the seven substantially in existence today. Hanging Gardens of Babylon, thought to be a series of landscaped terraces, exact location unknown, generally ascribed to ... (100 of 566 words)