<http://schema.org/description>
"Lighthouses can be beautiful, romantic and prone to collapse. Learn about 10 lighthouses that are in danger of being lost forever. Take this quiz to learn more about the 10 most endangered lighthouses."^^<http://www.w3.org/2001/XMLSchema#string>
<http://adventure.howstuffworks.com/most-endangered-lighthouses-quiz17.htm>