Experts investigate seven of America's most iconic modern-day megastructures. How were these engineering marvels built and what secrets do they conceal?

Egypt’s greatest monuments conceal many unsolved mysteries. Experts investigate tantalising new evidence uncovered from the Valley of the Kings.

Experts use innovative technology to investigate the incredible pyramids in Guatemala, Machu Pichu and reveal new images in the desert.

Experts investigate the mysteries behind ancient aqueducts and a lost villa discovered near the Colosseum. How did the Romans build these iconic structures?

Experts investigate the mystery behind the ancient pyramids from all over the globe. They explore lost labyrinths and discover human remains.

Experts investigate new evidence of some of history’s most intriguing lost cities. These remarkable discoveries reveal secrets about seven remarkable wonders.

Experts investigate new evidence that offers a unique glimpse at the Silk Road. They look at a recently discovered golden camel and a lost mega tomb.

New discoveries found under the tomb of Jesus Christ are investigated. Plus, innovative technology is used to decode faded manuscripts.