I don’t know what people expect to see at Hoover Dam. Maybe they scan the massive face of the structure — taller than a 70-story building — looking for a human hand sticking out of the concrete. Or ...

MORE INFO http://bit.ly/C3maps 3D map of Hoover Dam based on incredible mapping tech from Swedish startup C3 Technologies. Based on declassified missile targeting technology from Swedish aerospace ...

Add Yahoo as a preferred source to see more of our stories on Google. BOULDER CITY, Nev. – Hoover Dam towers more than 700 feet above Black Canyon on the Arizona-Nevada state line, holding back the ...

The Hoover Dam is an engineering marvel. For 83 years, it has held back the Colorado River and supplied power to California, Nevada and Arizona. Over 726 feet (221 meters) high, and nearly that thick ...