For years, Bay Curious listeners Julia Thollaug and Phil Montalvo have wondered the same thing: "What's the deal with the cross on Mount Davidson?" This week, how a 103-foot tall concrete cross ended up on the city's highest peak. It's a story that goes back almost 100 years.

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Reported by Suzie Racho. Bay Curious is made by Katrina Schwartz, Suzie Racho and Katie McMurran. Additional support from Brian Watt, Nina Thorsen, Erika Aguilar, Jessica Placzek, Kyana Moghadam, Paul Lancour, Carly Severn, Ethan Lindsey, Vinnee Tong and Don Clyde.