Explore dinosaur fossils, captivating gems, meteorites, rare minerals and hundreds of animals at one of Harvard University’s most visited museums. Get close to the world’s only mounted Kronosaurus, a 42-foot-long marine reptile; a 1,642-pound amethyst geode; and six different whale skeletons. Don’t miss the world-famous exhibit of 3,000 Glass Flowers, the new Sea Monsters exhibition.