Does anyone know if something like this already exists?
I have some ideas for how I would implement it myself but I thought I'd check what else is already out there.
Considering Google has so much location history of its users, along its Places data, one would think that creating a recommendation engine for travelers would be fairly trivial for them. I would not be surprised if they are already working on this.
That said, I would enjoy and potentially prefer an alternative solution to one they could provide.
Sounds interesting indeed, and I have not thought about it for long, but I doubt there is any public official database for it?
As an American visiting Austria, I sympathize with the Vienna bug. Nearly walked to Virginia multiple times due to a miscommunication with Google Maps ;)