For millennia, the Seven Wonders of the Ancient World have been known for their aesthetic sublimity, ingenious engineering, and sheer, audacious magnitude: The Great Pyramids of Giza, the Hanging Gardens of Babylon, the Temple of Artemis, the Statue of Zeus, the Mausoleum of Halikarnassos, the Colossus of Rhodes, and the Lighthouse at Alexandria. Echoing down time, each of these persists in our imagination as an emblem of the glory of antiquity, but beneath the familiar images is a surprising, revelatory history. Guiding us through it is today’s guest, Bettany Hughes, author of “The Seven Wonders of the Ancient World.” She has traveled to each of the sites to uncover the latest archaeological discoveries and bring these monuments and the distinct cultures that built them back to life.