<http://schema.org/alternativeHeadline>
"The NPS showcases some of the most beautiful scenery on Earth and duly protects it. Here are the most popular ones."^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.mnn.com/earth-matters/wilderness-resources/stories/10-most-popular-attractions-of-the-national-park-service>