The Mayas are best known for their spectacular architecture that made up their city centers, but they are also the most misunderstood of the great ancient civilizations.

The change from a solid state, snow and ice, to a liquid state, water, makes the Artic sensitive to climate change and introduces many dangerous positive feedback loops that can drive sudden detrimental climate shifts.

The most powerful geologic force on the planet - glaciers. Glaciers can dominate an entire continent ...

Eight half-hour shows chronicle the story of American Indians ... Their magnificent civilizations and accomplishments. Presented by Tyler Christopher.

5 PLAYS ON 5 DVDS IN GIFTBOXED SET!

5 PLAYS ON 5 DVDS IN GIFTBOXED SET!

Shakespeare is rightly called the world's greatest playwright for the soaring beauty of his language, for his profound insight into human nature, for the truths he dramatized and for the realism of the characters he created. He was, and remains, a superb entertainer.

As the Sherlock Holmes of science, Burke tracks through 12,000 years of history for the clues that lead us to eight great life changing inventions-the atom bomb, telecommunications, the computer, the production line, jet aircraft, plastics, rocketry and television.