Two summers ago my family embarked on a Great American Family Vacation across the Southwest. We flew to Phoenix and then drove across the desert to San Diego, back across the desert to Las Vegas, over the Hoover Dam, to the Grand Canyon, through the red rocks of Sedona, and back to Phoenix to fly home. The Hoover Dam left me awestruck at the power of man. The Grand Canyon left me awestruck at the power of God.
When we visited the Hoover Dam, crews had begun construction on a bridge allowing the highway to bypass the dam. Standing atop the dam and looking at the nascent bridge inching away from the earth and into the void above the Colorado River, I thought to myself, "How in the world are they going to build that thing?" The bridge has taken shape in the year and a half since my visit, and it remains a remarkable sight.