New York City Digital Geospatial Data

NYPL fire insurance atlases

NYPL 19th century county atlases of NY, NJ & CT

NYPL Digital Gallery Map Division (All digital maps)

Building footprints, curblines & survey control points

City data viewer

Elevation contours

Historical nautical charts

Nautical chart numbers

Official city data viewer

Property Records (Department of Finance)

Property Records (Property Shark)

Tax block/lot, administrative districts & street centerline