If you ever find yourself in Boston you must make a point to cross the bridge to Cambridge and stop by the Harvard Museum of Natural History. Their collection of hand blown glass flower specimens is well worth every penny of the $9 entrance fee but they also have an amazing collection of taxidermy animals (I know - eew - but also very cool!), sea creatures, dinosaur fossils, bugs, minerals, gems and meteorites.
Above: One of over 3000 glass models created by artisans Leopold Blaschka and his son, Rudolph. Models were commissioned from 1887 - 1936.