arangosh> db.geo2.ensureGeoIndex("location.latitude", "location.longitude");
{ 
  "id" : "geo2/1506629020", 
  "type" : "geo2", 
  "fields" : [ 
    "location.latitude", 
    "location.longitude" 
  ], 
  "constraint" : false, 
  "unique" : false, 
  "ignoreNull" : true, 
  "sparse" : true, 
  "isNewlyCreated" : true, 
  "code" : 201 
}
arangosh> for (i = -90;  i <= 90;  i += 10) {
........>     for (j = -180; j <= 180; j += 10) {
........>         db.geo2.save({ name : "Name/" + i + "/" + j, location: { latitude : i, longitude : j } });
........>     }
........> }	
arangosh> db.geo2.near(0, 0).limit(3).toArray();
[ 
  { 
    "_id" : "geo2/1576031644", 
    "_key" : "1576031644", 
    "_rev" : "1576031644", 
    "location" : { 
      "latitude" : 0, 
      "longitude" : 0 
    }, 
    "name" : "Name/0/0" 
  }, 
  { 
    "_id" : "geo2/1576228252", 
    "_key" : "1576228252", 
    "_rev" : "1576228252", 
    "location" : { 
      "latitude" : 0, 
      "longitude" : 10 
    }, 
    "name" : "Name/0/10" 
  }, 
  { 
    "_id" : "geo2/1568757148", 
    "_key" : "1568757148", 
    "_rev" : "1568757148", 
    "location" : { 
      "latitude" : -10, 
      "longitude" : 0 
    }, 
    "name" : "Name/-10/0" 
  } 
]