Last time I asked for local bookstore recs I had an AMAZING time visiting local bookstores in Minneapolis!! I'm going to St. Louis this weekend and I would love recs again!

Some extra info:

• Not shopping for any kids currently so children's sections don't matter to me and I would not go to an all-children's bookshop (though I deeply appreciate their existence)
• Primary interest is sci-fi & fantasy, so given the choice between a bookstore with a good overall selection, and a bookstore with a not-great overall selection but incredible spec fic section, I would go to the latter
• My free time will mostly be on Monday, so both store opening & Memorial Day traffic patterns are relevant to me. If the traffic is expected to be untenable I might stay in my hotel instead, but that's helpful to know too

But, all that said, I would love to hear about any bookstores at all in St. Louis that you enjoy going to!