Sequoia trees may be the planet’s largest, but the redwood trees are the planet’s tallest. The US Redwood National and State Parks are home to the tallest trees anywhere in the world. Some of these trees are over 300 feet tall or as high as a 28-story building. Hike the numerous serene trails that run through the California coastal forests, complete with gigantic trees around each and every bend. Here you will also see clear, bubbling streams, and unusual plants and giant ferns covering the verdant forest floor.
Just outside of Moab, Arches National Park covers an area of 120 square miles. This is a great place to learn just what time, wind, and water can do to sandstone. Indeed, the featured 2,000-plus arches found here were all formed by millions of years of erosion.
Perhaps the most popular of all these arches is the Delicate Arch which is 65 feet tall. This place is a real fantasyland of unusual rock formations. Highlights here include South Window, North Window, and the popular Park Avenue area of sandstone monoliths.