Devil's Tower in Wyoming. This is first thing in the morning. Looks like you've got four eager hikers ready to tackle this vertical wonder.

This "tower" is enormous. I know that this picture in its reduced size isn't ideal for this challenge, but see if you can spot the climber (hint: it's in the middle of the photo). That's an adult human in relation to this massive structure. Again, it doesn't translate well to a single photograph, but it helps to put this into perspective....

Well, here's another look at this giant natural wonder. Can you find Bernie in relation to it? Mind-boggling.

Out the window on the car ride to Yellowstone National Park....