About: http://webisa.webdatacommons.org/254022344

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	Hoover Dam: A National Historic Landmark, Hoover Dam is the highest concrete dam in the Western Hemisphere, towering at more than 725 feet over the Colorado River.
http://www.w3.org/ns/prov#wasQuotedFrom	vegas.com