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.
New York's Nordstrom Tower set to become tallest residential structure in the world at 1,775ft (making it just a foot shorter than One World Trade Center) 1  The Nordstrom Tower is under construction on West 57th Street in Manhattan and will be completed in 2018. It will measure 1,775 feet at its spire - which is 300 feet taller than anything else in Midtown but one foot shorter than One World Trade Center.