I've been to Hoover Dam more than a few times. I've done the tours and spent hours taking photos. The place is a wondrous convergence of a stunning gorge and an incredible human feat of design and engineering. It's always been crowded, too.
However, I came here on a recent Sunday morning and there was no one walking about anywhere. When not for the occasional car that drove by, it was an otherwise eerie feeling. How could I be the only person at Hoover Dam?