Podcast:Who Smarted? - Educational Podcast for Kids Published On: Fri Dec 03 2021 Description: How were the oldest bridges made? How have bridges evolved over the years? What is the tallest bridge in the world? For free home activities sign-up at www.WhoSmarted.com See Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info.