The program chronicles a successful 1999 NOVA expedition to investigate the mysterious disappearance of George Mallory and Andrew Irvine high on Everest in 1924. During this expedition, which included a NOVA/PBS Online Adventure, Mallory's body was found, though the mystery only deepened.

The film, which is a part of the NOVA series Secrets of Lost Empires, showcases the efforts of a team of archeologists, engineers, and other experts to transport an Easter Island moai, or carved stone monolith, overland and successfully raise it onto a pedestal.

In this high-altitude adventure, Jon Krakauer, author of Into Thin Air, world-class mountaineer Conrad Anker, and their team of climbers, scientists, and filmmakers take a trailblazing expedition to the top of Antarctica's tallest peak, Vinson. Along the way, their experiences are contrasted with those of Norwegian adventurer Roald Amundsen and British explorer Robert Falcon Scott who in 1911 raced to be first to reach the South Pole. Join NOVA and battle 60-mile-an-hour winds and temperatures as low as 35 degrees below zero. Learn about the horrible fate that befell Scott and his team after reaching the South Pole one month after Amundsen. See spectacular panoramic footage.

Top scientists join mountaineers on an expedition to explore Antarctica and climb to Vinson Massif, which stands as the highest peak in the continent. Expert mountaineer Jon Krakuer narrates this documentary that also includes a look back to the year 1912 when Scott and Amundsen raced to reach the South Pole.

Before Leonardo da Vinci painted "The Last Supper," Tibetan craftsmen were creating stunning artistry of their deities in the remote Himalayan kingdom of Mustang. In "Lost Treasures of Tibet," NOVA goes behind the scenes with the first conservation team from the West, as it undertakes the painstaking restoration of these ancient masterpieces and the beautiful monasteries that house them.

A team of "glacionauts" verntures into a labyrinth of unexplored and hazardous glacier caves on France's Mt. Blanc.

Doctors, rescuers and mountaineers try to determine why people die attempting to climb Mount McKinley.

On April 25, 2015, a devastating earthquake rocked Nepal. As it ripped across the Himalayas, it wiped out villages and left thousands dead. Hear the harrowing stories of the Nepalese people who lived near the epicenter and of survivors trapped on Everest. Through dramatic eyewitness footage, expert interviews, and stunning graphics, NOVA reveals the anatomy of this megaquake while scientists race to answer urgent questions—Is another big one just around the corner? What can we learn from the deadly combination of earthquakes and landslides? And can we rebuild to survive the next big one?