Hey, I hope this isn't rude, but I'm from WA and I figure this is probably something you'd want to know as someone writing about Seattle-- Its name is Pike Place, without a pluralisation or possessive, and it's definitely a shibboleth for anyone familiar with the area. (and also is inexplicably grating to hear/read, but I think that's just me and my own issues with pedantry, which obvs isn't universal)
FURTHER PROOF OF WHY I NEED AN EDITOR ALWAYS. lol I know that it’s “Pike Place” but when I’m typing I always write “Pikes Place” because my CO ass is so used to writing “Pikes Peak”
… Pike Place should open up a branch on Pikes Peak just so we can have Pikes Peak Pike Place and everyone can be confused forever.