2️⃣0️⃣ 20th Birthday Treasure Hunt (2025); hints for clue 15 - 2019

Birthday banner 15
2019

The Yellow Rectangle of fame
Did geographically proclaim
Of every bookstore, in every town,
Los porteños take the crown.
And in this year, with praise divine,
Named this one the most sublime.

(Tim)

19 timspalding : Hmmm. This is a Google, I think. And while "The Yellow Rectangle" may not be American, I'm not sure it's found in every country.

20 Aquila : I dunno, what does the national mean if not America?

Amusingly that is what just helped me find it.

61 Dilara86 : I'm in the same boat as you for #2 and #13. For #15 did you check on the Search page, under LibraryThing Local?

81 Luisali : it's a famous bookstore from that year; the spanish words are a clue.

82 Dilara86 : Then it's possible your guess wasn't correct, because when I type the name of this grand and splendid Buenos Aires bookstore (the most beautiful bookstore according to the National Geographic) in the search box, it only displays only one link.

87 Luisali : it's the wrong city, google 'Los porteños' and look for a bookstore with a synonym of 'sublime' in the name in that city

280 amanda4242 : For #15 the yellow rectangle refers to National Geographic and the country is Argentina.

281 GandalfTheGreen : Another poster replied to you with some very accurate advice. One thing that tripped me up: make sure you spell the name of the establishment correctly when you are searching for it.

Thank you for these hints! I knew the answer I just couldn't get to the right page.