The prettiest pennies are made in San Francisco. Take a trip inside the S.F. Mint. Reported by Amanda Font. Editing by Jessica Placzek and Julia McEvoy. Hosted by Ryan Levi. Bay Curious is made by Olivia Allen-Price, Jessica Placzek, Ryan Levi, Paul Lancour, Suzie Racho, Erika Kelly and Julia McEvoy. Holly Kernan is Vice President for News. Theme music by Pat Mesiti-Miller. Ask us a question at BayCurious.org. Follow Olivia Allen-Price on Twitter @oallenprice.

Spinning Rims, Spinning Cars: the History of the Oakland Sideshow

Bay Curious is a show about your questions – and the adventures you find when you go looking for the answers. Join host Olivia Allen-Price to explore all aspects of the San Francisco Bay Area – from the debate over "Frisco", to the dinosaurs that once roamed California, to the causes of homelessness. Whether you lived here your whole life, or just arrived, Bay Curious will deepen your understanding of this place you call home.