The lost fortresses of the Viking Age in today's Denmark. Why were they built and what caused the Viking Age to end?

The 5,000-year-old Pyramid City of Caral in today's Peru marks the place where the possibly oldest civilization in the Americas once existed. Did they practice human sacrifices like some other more famous civilizations on the continent?

Near the city of Luxor lies the Valley of the Kings where most of Egypt's ancient temples and pyramids are located. How were they built and how did the Pharaohs use them to rise to power?

The latest scientific methods are used to analyze and the Statue of Liberty and discover its secrets as well as the inspiration for it.

The Greek island of Crete was the home of the mythical Labyrinth of the Minotaur. Did the demise of the island's advanced and mysterious Minoan civilization inspire the legend of the fall of the Atlantis?

How and why were the famous Moai statues of Easter Island built and what caused the downfall of the Island's civilization which built them?

What brought about the downfall of Trier, the largest Roman city north of the Alps and, for a time, an imperial residence? Did Attila the Hun conquer it or was it actually abandoned by Rome decades before he even arrived?