A spreadsheet only answers if you know how to filter it. Ask this one in plain English — "natural history museums in the Midwest," "botanical gardens in California" — and watch it return a live map, a breakdown, and the matching records. This one runs on 2,569 real U.S. institutions from the IMLS Museum Universe Data File; point the same tool at any collection a museum has.
Where they are
Hover a point for the museum; click it for details and a web link · positions approximate, by city · satellite: Esri when online, vector boundaries offline