Has anyone been to the smithsonian coin exhibit AND is it worth the visit? It closes March 10th and I am pretty sure that the coins will not be on view again for 10 or more years, as they are remodeling the castle. go to (cut and paste link)http://americanhistory.si.edu/coins/printable/exhibition.shtml. 1907 double eagle, 1974 aluminum cent, 1913 v nickel.....