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.
30 Park Place is currently the 10th tallest building in New York City and, according to its website, the tallest residential tower in downtown Manhattan. The site of a Four Seasons Hotel and 157 luxury residential units, the building stands at 937 feet and boasts sweeping views of the city. (Credit: 30 Park Place)