Less than 250 miles from Oprah's home in Santa Barbara, the largest living thing on Earth resides in Sequoia National Park. This California redwood—known as General Sherman—equals the weight of 10 blue whales.
Another grove of redwoods contains three of the tallest trees in the world. One is more than 300 feet tall…the height of a 30-story building. These majestic forests have been around for thousands of years, before the Swiss Alps or the Rocky Mountains were in existence.
Higher up in the mountains, the oldest organisms on planet Earth grow on a rocky cliff. Some of these bristlecone pine trees have been alive for 5,000 years, which means they were already 3,000 years old when Christ was born.
"Who knew that the oldest and tallest living things on Earth are really right in our own backyard," Oprah says. "That's so amazing."