Incredible American tourist attractions lost forever

Arches National Park unfolds across eastern Utah, all rocky red terrain and striking natural arches. There are 2,000 of them, in fact, ranging from craggy, thick curves to delicate bows that soar across the hot earth below. The landscape was formed more than 65 million years, but we were reminded of its fragility in 2008 when Wall Arch, a rugged curve spanning a 71-foot (22m) gap, collapsed in the night.