About: http://webisa.webdatacommons.org/107036380

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 is a national historic landmark and the highest concrete dam in the Western Hemisphere, more than 725 feet (220 m) above the Colorado River.
http://www.w3.org/ns/prov#wasQuotedFrom	arrivalguides.com