Take the free park shuttle to the Temple of Sinewava, walk one mile to the end of the paved walkway, and begin hiking up the river. Two hours upstream, at the intersection with Orderville Canyon, hikers will encounter the narrowest and most spectacular section of the Zion Narrows.
Photograph by Mike Segar, Reuters Second City is back in second place, at least when it comes to height. New York's One World Trade Center will officially open next year as America's tallest building, topping Chicago's Willis Tower by 325 feet (99 meters). The distinction hinges on a definition. According to the Council on Tall Buildings and Urban Habitat, the needle atop the new trade center is a spire, not an antenna.
Illinois - Formerly known as the Sears Tower, Willis Tower is the tallest building in Chicago and all of Illinois. Build in 1975, for 25 years, it held the title of tallest building in the world. Currently, it now is just the 2nd tallest in the USA at 108 floors and 1,451 feet tall.