Hillary and Tenzing make their assault on the summit of Everest

The 1953 British Mount Everest Expedition begins

The life of Tenzing Norgay and the world of the Sherpas

A background on Edmund Hillary

Mallory and Irvine make one final try on the summit of Everest

The 1924 British Mount Everest Expedition

The 1922 British Mount Everest Expedition

In 1921, British mountaineer George Mallory would be the lead climber with the British Mount Everest reconnaissance expedition

The Polos head home - completing a 24-year, 15,000+ mile journey.

Marco Polo heads down the Grand Canal to the legendary City of Heaven

The Mongol World and Marco's first expedition across China

Marco Polo and his family travel the Silk Road to reach the court of the legendary Kublai Khan

Marco's father and uncle, Niccolò and Maffeo Polo, visit Kublai Khan and prepare for another journey east

Brazza returns to Africa as an administrator - and investigator

Brazza returns to Africa where he will establish an outpost on the great Congo River

Pierre Savorgnan de Brazza conducts his first expedition up the Ogowe River

Pierre Savorgnan de Brazza and the Exploration of Central Africa

Chinese explorer and alchemist Xu Fu goes searching for the elixir of life.

The fate of John King is reveals, and the legacy of the VEE is discussed

Burke makes the risky decision to try and cut across country to Mount Hopeless

Robert Burke has crossed Australia, and now must make the return journey across the continent.

Robert Burke leads a small contingent of men into the outback of Australia in an attempt to reach reach the north coast

Burke and Wills trek from Menindee to Cooper's Creek - then prepare to strike out for the north coast of Australia

The Victorian Exploring Expedition travels from Melbourne to the frontier outpost of Menindee on the Darling River.

The Exploration Committee and Robert Burke hire men and outfit the expedition for its epic journey across Australia