Secrets in the Sand

The origins of a huge geoglyph in the Australian outback are investigated. In Chile's Atacama Desert, the mummified remains of ninety-six ancient people are unearthed. A newly found tomb in Egypt leads to a surprising discovery. Strange animal bones are found in an unforgiving desert.

On the western bank of the Nile River, the remains of ten ancient crocodiles are excavated. The mystery of why millions of unusual circles of grass can be found in the inhospitable Namib Desert might finally be solved. In Egypt, the discovery of a four-thousand-year-old stone complex could be the ruins of a legendary lost city.

In Death Valley, USA, rocks appear to magically move across a dry lakebed on their own. Archaeologists find jade stones among crumbling rock walls in China's Ordos Desert, leading to a major discovery. Ancient animal bones with evidence of trauma are found in the high desert of New Mexico, USA, creating new theories about when humans first arrived in the Americas.

On Egypt's Red Sea coast, a major archaeological discovery might be connected to the building of the Great Pyramid in Giza. Ancient life-sized sculptures depicting camels are found carved into a huge rock face in Saudi Arabia. In Mauritania, a strange formation in a remote part of the Sahara Desert is investigated.

Just south of Cairo, Egypt, in the shadow of the Pyramid of Unas, archaeologists make a remarkable new discovery. The remains of a Portuguese ship that disappeared on its way to India in 1533 may have been found in the Namibian desert. A crashed World War II plane is discovered in the Egyptian Sahara and the fate of the pilot is investigated.

Ancient human remains believed to belong to a great hunter are discovered in the Peruvian highlands. In Tunisia, the ruins of a legendary lost Roman city may have finally been found. Strange sounds emanating from sand dunes in the Mongolian desert are investigated. A huge collection of human and animal bones is discovered in a cave in Saudi Arabia.