Listener Ryan heard an eerie noise while crossing the Golden Gate Bridge on his motorcycle. He's not the only one -- the sound can be heard from miles away. What's going on?Additional Reading:<ul>
<li> <a href="https://www.kqed.org/news/11837051">The Story Behind the Golden Gate Bridge's New Howl</a>
</li>
<li><a href="https://www.kqed.org/arts/13881451/the-golden-gate-bridge-sounds-like-a-david-lynch-movie-now">Why the Golden Gate Bridge Is Now A Giant Orange Wheezing Kazoo</a></li>
<li>
<a href="https://www.reddit.com/r/engineering/comments/gxvg7i/golden_gate_bridge_side_path_redesign/">Engineers discuss the phenomenon on Reddit</a>.</li>
</ul> Reported by Rob Speight with support from Gabe Meline. Bay Curious is made by Olivia Allen-Price, Katrina Schwartz and Rob Speight. Additional support from Erika Aguilar, Jessica Placzek, Kyana Moghadam, Paul Lancour, Suzie Racho, Carly Severn, Bianca Hernandez, Ethan Lindsey, Vinnee Tong and Don Clyde. Learn more about your ad choices. Visit <a href="https://megaphone.fm/adchoices">megaphone.fm/adchoices</a>

How the North Bay Became 'Wine Country'

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.