![Wordmark for World's Largest Dinosaurs exhibit](https://www.calacademy.org/sites/default/files/styles/manual_crop_square_460px/public/assets/images/exhibits/wld_900x900_wordmark_filled_230412.jpg?itok=_sIb9amY&c=c417e56e8cd7aed777dc01e7ee821ee4)
Guests are greeted by the enormous head of an Argentinosaurus, considered to be the world’s largest sauropod at up to 140 feet long and 90 tons. Inside, a 60-foot-long Mamenchisaurus spans the length of the exhibition hall. Stand up straight: How do you measure up next to a 15-foot-tall Supersaurus hind leg?