"The giant sequoia - Sequoiadendron giganteum - tends to live for many centuries, enabling it to grow larger than any other species of plant. The trees are naturally found only in a small area of the Sierra Nevada in California, nearly all of which is covered by the Giant Sequoia National Monument.
While they have been successfully grown in other areas of North America and around the world, nowhere have they been standing long enough to challenge the size records set by the Sierra Nevada giants.
They can live for up to 3,500 years, reaching heights comparable to skyscrapers."
More incredible pictures can be found here.