I think in some comic books or cartoons, maybe a superhero like Superman could have his own zip code. It could be used for his secret hideout or something like that. But it really depends on the creator's imagination!
The story of the White Lady in Santa Maria is very popular. She's often spotted near an abandoned building. Many believe she was a bride who died on her wedding day. Another popular one is the ghost of the old lighthouse keeper in Santa Maria. His ghost is said to still be looking out to sea, protecting the ships even in death.
One Santa Maria ghost story is about a spectral lady in white. She is often seen near an old mansion in Santa Maria. Legend has it that she was a young woman who died tragically in love. People claim to see her on moonlit nights, just wandering around the property, as if still searching for her lost love.
It varies. In most cases, you can walk into Santa Maria Novella without a ticket. However, for some specific attractions or during peak tourist seasons, having a ticket in advance could be a good idea to avoid long queues.
I can't think of any off the top of my head. Maybe some superheroes or fantasy characters could have their own zip codes in certain fictional universes.
I think Harry Potter could have his own zip code. The Harry Potter franchise is so vast and beloved that it might warrant such a unique thing. It could be used for special events or fan mail related to the series.