https://foursquare.com/city-guide https://foursquare.com/city-guide layers Foursquare's proprietary labeled place taxonomy ( https://developer.foursquare.com/do

https://foursquare.com/city-guide https://foursquare.com/city-guide layers Foursquare's proprietary labeled place taxonomy ( https://developer.foursquare.com/docs/categories https://developer.foursquare.com/docs/categories ) on top of Mapbox maps which use OSM. It's certainly not all open source data, but if you want something that's an already-deployed website that doesn't use Google tech, it may be your best bet.