Sources

Every listing is a conclusion drawn from open, public sources — each page says which ones under “How we know”. No source is treated as the truth; where sources disagree, we show what each one says. Nothing here is copied from Google or from OpenStreetMap’s database.

Coverage. The United States — every state and the District of Columbia; other countries later. The directory is built by machine and reviewed after publication: two listings for one building, or one listing that should be two, will exist — co-located communities sharing a building are shown as separate places on purpose until reviewed.

Sources used

Map tiles, where shown, are © OpenStreetMap contributors.