Enlisted personnel are identified by way of their various 'E' grades ranging from E-1 to E-9. For those service branches recognizing a Warrant Officer rank, 'W' grades range from W-1 to W-5. Likewise Officers are scaled from O-1 to O-10.
China has quite a collection of natural bridges, including one that experts say has the longest span of any natural bridge in the world. The Fairy Bridge (Xianren Qiao), in southwestern China's Guangxi Zhuang Autonomous Region near the border with Vietnam, has a 400-foot span.
A Rainbow Turned to Stone. Rainbow Bridge is one of the world's largest known natural bridges. The span has undoubtedly inspired people throughout time--from the neighboring American Indian tribes who consider Rainbow Bridge sacred, to the 85,000 people from around the world who visit it each year. Please visit Rainbow Bridge in a spirit that honors and respects the cultures to whom it is sacred. Read More.