Code

• Map Warper
• OpenStreetMap iD editor
• openstreetmap-website
• OpenStreetMap CGImap
• makesense.ai
• 3dmr

Data

• NYC Open Data:  New York City streets, building footprints, metadata
• OpenStreetMap:  Georeferencing base layer for rǝ warpǝr; road and street data
• NYPL Digital Collections:  Scans of fire insurance maps, maps metadata
• Open Data DC:  Historic Data on DC Buildings
• Microsoft:  US, Canada, Australia, Uganda, Tanzania building footprints
• NYC DoITT:  3D models
• Adamlink:  Amsterdam historic buildings footprints and metadata
• Paris Urbanism Agency (Apur) Open Data:  Paris and Greater Paris building footprints
• Los Angeles County Open Data:  Los Angeles County building footprints
• City of Chicago:  Chicago building footprints
• OpenDataPhilly:  Philadelphia building footprints