Double Arch is a famous natural feature in Arches National Park, Utah. It consists of two close-set arches formed by water erosion from above, giving it a unique appearance compared to other arches in the park. The larger opening has a span of 148 feet and a height of 104 feet, making it one of the tallest and longest arches in the area. Visitors can easily access Double Arch from a nearby parking area and explore beneath and through the arches without any barriers. Plus, fun fact: it made a cameo in the opening scene of Indiana Jones and the Last Crusade!