At 3841 18th Street in San Francisco's Castro neighborhood sits a light blue Victorian, not unlike the countless other homes of that style in the city. Except this one is a major tourist destination—if you're French, that is. What makes this particular Blue House so special? We turn to NPR Culture Correspondent Chloe Veltman (who is half French herself) for the the very musical answer to this question.

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This story was reported by Chloe Veltman. Bay Curious is made by Olivia Allen-Price, Amanda Font, and Christopher Beale. Additional support from Cesar Saldana, Jen Chien, Katie Sprenger, Jasmine Garnett, Carly Severn, Attila Pelit and Holly Kernan.