<http://schema.org/alternativeHeadline>
"Basketball, mini-golf, a Ferris wheel, an underground lake and a spa are just some of the attractions found in this majestic 13th-century Romanian salt mine."^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.mnn.com/lifestyle/eco-tourism/stories/former-salt-mine-transformed-into-spectacular-underground-theme-park>