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.
One World Trade Center's height of 1,776 feet includes its spire. Credit Hiroko Masuike/The New York Times. For four decades, Chicagoans have been able to one-up New Yorkers on at least one measure: The City of the Big Shoulders had the tallest building in the United States. But as of Tuesday, that crown is moving east. One World Trade Center in Lower Manhattan has officially been ruled to be taller than the Willis Tower, in Chicago.