In 1914, Shackleton set sail on the ship Endeavour to travel to Antarctica – the remotest and coldest of the Earth's continents. But, the journey was filled with dangers. The ship became trapped in the ice and started to break, and the crew's food began to run out. Watch this video to find out about the dangerous voyage – and how Shackleton and his crew survived.

Learn about Shackleton's 1914 Imperial Trans-Antarctic Expedition 

A mysterious object

When Shackleton and his crew were forced to abandon Endurance, Shackleton made sure to save a specific object. Can you guess what it might be?