<http://schema.org/caption>
"The eerie hotel suite accommodates two and is situated 155 meters (509 ft) below the earth's surface, amidst winding tunnels and deep cavities (image: Sala Silvermine)"^^<http://www.w3.org/2001/XMLSchema#string>
<http://newatlas.com/the-worlds-deepest-hotel-room/20228/>