To outsiders, Turkmenistan is one of the world's least known countries. For the first time in ten years, a film crew has been free to visit spectacular excavation sites and follow international researchers into areas that have long been off-limits.

Once considered the poorest part of the Soviet Union, oil and natural gas have brought new wealth to Turkmenistan today. A little known fact in the West is that 4,000 years ago, the country was home to one of the ancient world’s centers of power. Although it flourished around the same time as the advanced civilizations of Mesopotamia and Egypt, the Margiana empire was later largely forgotten. But recently, archaeologists have discovered palace buildings and magnificent burial treasures at the site of the capital, Gonur Depe, in the Karakum Desert. Incredible aerial photography shows the dimensions of the lost metropolis. An international team of researchers also unearthed monumental fortifications in neighboring Ulug Depe. The ruined cities of Merv and Kunya-Urgench have been declared UNESCO World Heritage Sites. Suddenly, historians and the media are paying much more attention to Central Asia. Why has Turkmenistan seen powerful empires rise and fall since the Bronze Age? DNA analysis shows a highly mobile population, whose contacts reached as far as India, the Urals and the Mediterranean Sea. The Silk Road between China and Europe was the world's most important trade route for thousands of years, lending Turkmenistan great historical significance. Since the fall of the Soviet Union, the country has been slowly opening up to international researchers, and its astounding cultural heritage is coming to light.