Once you reach the summit, you'll find an American flag proudly waving at the top. From here, you'll be treated to panoramic views of Lake Mead, Hoover Dam, and the surrounding mountains.

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

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.