Italy
Kolob Arch is a natural arch in Zion National Park, Utah, United States. According to the Natural Arch and Bridge Society (NABS), it is the sixth-longest natural arch in the world. In 2006, the Society measured the span at 287.4 ± 2 feet (87.6 m), which is slightly shorter than Landscape Arch in Arc
hes National Park. Differences in measuring technique or definitions could produce slightly different results and change this ranking.
Listen to the audio guide for Kolob Arch Free on WIP — starts by itself when you arrive, even with the screen off