2. I became obsessed with Luna Park, an influential proto-Disneyland based in Coney Island 100+ years ago. It was so popular they ran light rail out there and hundreds of thousands of people went there every weekend until it burned down about a decade later. Took a book about it on vacation to Paris. Went to a random place to read, and it had a little concourse named Luna Park. Inside it was a random coin-op machine named Luna Park, not related to the concourse from what I could tell.
3. I was studying songs by the lyricist Jule Stein, a New Yorker. One day I went into a used bookshop on the other side of the country in Newport Beach, CA just to browse. I found a bunch of books with his bookplate in them. (Nothing musical, sadly.)