I'm looking for a web app that I came across almost a year ago and haven't been able to find since. The web app uses crowdsourcing to identify locations from photos uploaded by users.
Does anyone have any idea what it could be?
You drop an image onto the webapp and it has a go at identifying it. It works pretty well for landmarks.
The identification is not perfect and you may just get a generic answer like "Building", which isn't as helpful as you would like. However, it may go some way towards what you are after.
A crowdsourced platform that may meet these criteria is Scoutt (also see http://petapixel.com/2015/07/17/scoutt-a-crowdsourced-map-for-finding-and-sharing-photo-locations/ ).
Another possibility is https://www.reddit.com/r/wherewasthistaken/ .
So I resolved myself to sit down and find this site again, and I'm glad to report that after at least 30 minutes of all sorts of online detective work, creative Googling and trying to recreate the search terms I used to find the site initially, I finally found it:
4,406 places submitted
3,481 placed successfully located
Browse locations by country
Search locations by country, or by filters such as "Best rated" and "Hotly debated"
I'm not sure whether anyone else will get as much use out of this site as I will, but I've personally found it really useful in the past and hope to do so in the future, so needless to say I'm glad to have found it again.
It's a lot more fully-fledged and feature-heavy a service than the alternatives, including the popular sub-Reddit. Granted, that may be slightly offset by the relatively small community at the moment, but with such a feature-powerful platform and smooth UI, I feel like it's only a matter of time before it starts to gain some much-deserved traction and become the defacto site for the purpose.