John Muir, often known as "the father of national parks," described Yosemite National Park as "by far the grandest of all the special temples of Nature [he] was ever permitted to enter," and it's not hard to see why. Nestled right in the central Sierra Nevada, the park is roughly the same size as Rhode Island, though most of its visitation is focused on the seven square miles of Yosemite Valley. If there was one word to describe Yosemite - and the waterfalls, cliffs, meadows and trees within it that make it so special - it would be BIG.