Antarctica: journeys to the South Pole

Into the unknown: James Cook crosses the Antarctic Circle

Hard work in the frigid cold

The race begins: James Clark Ross's South Pole expedition

The tyrant: Charles Wilkes and the first American scientific expedition to Antarctica

Exploration in the modern age

The discovery expedition

Ernest Shackleton and the Nimrod expedition

On the ground in Antarctica

The unforgiving Antarctic

The unbelievable journey

Byrd brings technology to Antarctica

Assuring the future

Antarctica today

Facts about Antarctica

Timeline.