"Pompeii (Extinct city)" . . "Mysteries unwrapped. Lost civilizations" . . . . . . . "Mysteries unwrapped. Lost Civilizations Lost civilizations"@en . . . . . . . . . "Juvenile works"@en . . "Juvenile works" . . . . . . "Lost civilizations"@en . "Lost civilizations" . . . . "Provides information on the cities of five lost ancient civilizations, discussing attempts to find them, excavations of them, and what these excavations reveal about the civilizations that created and lived in the cities."@en . "Provides information on the cities of five lost ancient civilizations, discussing attempts to find them, excavations of them, and what these excavations reveal about the civilizations that created and lived in the cities." . . . "Ur (Extinct city)" . .