1: First use facebook graph API to search locations and get facebook_places_id. Here is an example:
https://graph.facebook.com/search?q=&type=place¢er=37.77493,-122.419415&distance=5000&access_token=ACCESS-TOKEN&expires_in=5184000
Get the facebook_places_id and use this instagram location search API to get the corresponding instagram_location_id
https//:api.instagram.com/v1/locations/search?facebook_places_id=273471170716&access_token=ACCESS-TOKEN
2: Get the location id and then make the instagram location media API to get recent media:
https://api.instagram.com/v1/locations/514276/media/recent?access_token=ACCESS-TOKEN
3: Here is an implementation of Instagram location media search using the above method: