<http://schema.org/alternativeHeadline>
"Today, we shrug off the convenience of long-distance travel as part of life, but it wasn't that long ago that simply getting there required a huge investment of time and money."^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.mnn.com/green-tech/transportation/stories/how-fast-could-you-travel-across-the-us-in-the-1800s>