When the National Library of Israel (NLI) moved to its new building, it discovered priceless artifacts that had been languishing in boxes in the basement of the old library building for decades. The Seattle-based Samis Foundation has given $1 million to catalog and digitize them.
https://www.jns.org/seattle-grant-brings-sephardi-treasures-to-light-in-jlems-national-library/
https://www.nli.org.il/en/discover/judaism/jewish-history/spain-jews-expulsion#archives