As @Ramis answered, You should check the "Place Detail" of "Google Places services"
There's a public API to get Detail information by passing PlaceID:
https://maps.googleapis.com/maps/api/place/details/json?placeid=#{PLACE_ID_FROM_GOOGLE_PLACES}&key=#{YOUR_API_KEY}
The documentation is here: Google Places API Web Service
I have tested this with Google Maps SDK for iOS version 1.10, the Demo has a places list, each place has a placeID
, you can get detail by passing it to the link above.
But I don't know Google Places services will output something relative to Wikipedia or not.