Perhaps you have taken a vacation with the intention of seeking out some historical or national monument. Some of the favorites are probably Mount Rushmore, the Liberty Bell, the Gettysburg Battlefield, or Valley Forge. Indeed, this may have been the point of the whole vacation, to take in an important site that ties the past to the present, and on into the future.

Certainly, if you have been to Valley Forge, for instance, even on a warm summer's day, it is hard not to shiver as you consider the horrific winter conditions that tested the valiant few whose faithfulness preserved the liberties we enjoy today. Or, perhaps, you have watched the pattern of the shadows change on the four presidents memorialized on Mount Rushmore, and wondered if in the future some fifth face will prove worthy o…