PHOTOS: Presidential libraries

<div class="meta image-caption"><div class="origin-logo origin-image"><img src="http://cdn.abclocal.go.com/assets/news/global/images/logos/origin-ap.png" alt="AP"></div><span class="caption-text origin-image"><p>Postcards of President Herbert Hoover sit on display in the gift shop, Friday, Jan. 21, 2005.</p></span></div>
April 25, 2013 5:12:55 PM PDT