I've heard of the Hoover Dam my whole life. It's the scene in one of Barbara Kingsolver's novel Pigs in Heaven where little Turtle watches a man jump over or fall. However you remember it, it's the Hoover Dam. It's a place that doesn't really mean much to me otherwise but it's landmark so we did take a brief stop so I could snap a picture of the big dam. The more exciting memory I will always link to it is right before turning the corner to see the dam there was a sign with sheep on it and immediately to my right, high on the ledge were a group of Bighorn Sheep. There's nothing like seeing a new animal but even moreso when it's a big animal and one you weren't expecting. So the big dam will always be remembered as the spot I saw my first Bighorn Sheep.