A huge geoglyph in the Australian outback is investigated, 96 ancient mummies are unearthed in Chile, a new tomb in Egypt leads to a surprising discovery, and strange animal bones are found in an unforgiving desert.

The remains of crocodile mummies on the Nile River are excavated. Millions of grass circles are found in the Namib Desert. A lost city is rediscovered in Egypt. And a band of strange holes in the Nazca Plateau is investigated.

In Death Valley, rocks appear to move on their own. Archaeologists find a lost civilization in the Ordos Desert. Animal bones in New Mexico reveals traces of first human migration. And strange stones found in the Sahara have astronomical purpose.

An archeological find in the Red Sea is connected the Great Pyramid. Life-sized camel sculptures are found in Saudi Arabia. Gaze at a mystical geological formation deep in the Sahara. And a 37-million-year-old enigmatic fossil is uncovered in Egypt.

Archaeologists made a remarkable new discovery near Cairo. Experts find a 16th-century Portuguese ship in the Namibian desert. A WWII plane uncovered in the Sahara sparks pilot fate probe. And a fossilized missing link is found in Taiwan.

Ancient human remains are discovered in the Peruvian highlands. Underwater Roman ruins are uncovered in Tunisia. Strange sounds in the Mongolian desert are investigated. And a cache of human and animal bones is discovered in a Saudi Arabian cave.