Follow the Ring of Fire from New Zealand to South America. Navigate the Blue Nile and walk the Great Wall of China. Meet the first person to reach the South Pole and witness the "Green Revolution" in India. Explore the people, landscapes, and languages of our fascinating planet and uncover the answers to all your questions about world geography . . .

How old is the earth?

Can volcanoes form underwater?

What are maquiladoras?

Why are rain forests so important?

Where and what are the Pillars of Hercules?

Is the Red Sea really red?

What languages are spoken in Africa?

Do any plants or animals live in Antarctica?