America before Columbus was home to some of the greatest engineering marvels on the planet: Chichen Itza, the Statues of La Venta, Tikal, Machu Picchu, Cusco's Temple of the Sun, the Nazca Lines, and the Moai of Easter Island. Special access to hi-tech archaeological digs reveals the secrets of ancient America's Seven Wonders as experts investigate their mysterious purposes.

Cutting-edge archaeological methods help experts unearth the dark secrets hidden at the seven wonders of ancient Rome: Colosseum, the Pont-du-Gard Aqueduct, Hadrian's Wall, the Pantheon, the Domus Aurea, Herculaneum, and Pompeii. What they find challenges everything we know about this once-mighty empire.

Investigators use cutting-edge tech to explore seven ancient pyramids from around the world: the Step Pyramid of Djoser, the Greater Pyramid at Caral, the Bent Pyramid at Dahshur, the Great Pyramid at Giza, the Black Pyramid, the Pyramid of the Sun at Teotihuacan, and Tikal. As experts explore their lost labyrinths and alien relics, they discover unexplained connections between cultures thousands of miles and years apart.