Member profile
Evidence, ratings, countries, missions, and public contributor standing.
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Guide
Use Google Maps embeds to document before-and-after street-level change.
Use nominations when you know a place needs evidence but you do not have the before-and-after embeds yet.
Add a Google Maps link, a short note, and the location becomes an open lead for contributors.
Approved evidence can be rated from 1 to 5 stars. Ratings build country, region, pin, and user leaderboards.
Signed-in ratings are tied to your account. Anonymous ratings use a local browser identity.
Submissions wait for review before appearing on the public map. Admins can correct labels, years, categories, and coordinates.
World Decline Map is a global before-and-after evidence map built from public Google Maps embeds.
The project tracks visible street-level decline, change, and neglect by place, category, country, and contributor.
Street-level evidence, dated comparisons, open nominations, and public locations that can be checked by other users.
Compare the submitted before and after Street View records.
Email recovery and social login are handled by Clerk. Public boards only show your display name.