Sitting about 35 miles southeast of Las Vegas, the Hoover Dam spans the Colorado ... shows a 10-minute film about the dam. Don't forget to head to the top-floor observation area to snap some ...

Everything to know about seeing Hoover Dam, including the security checkpoint, whether there's a lot of walking and how to get dam-tour tickets.

A year shy of its 90th anniversary, experts still marvel at the construction of the Hoover Dam, one of the most visited sites ...