code: public function searchMedia($lat, $lng, $distance = 1000, $minTimestamp = NULL, $maxTimestamp = NULL) {
          return $this->_makeCall('media/search', array('lat' => $lat, 'lng' => $lng, 'distance' => $distance, 'min_timestamp' => $minTimestamp, 'max_timestamp' => $maxTimestamp));
      }
docs: Search media by its location
  
  @param float $lat                    Latitude of the center search coordinate
  @param float $lng                    Longitude of the center search coordinate
  @param integer [optional] $distance  Distance in metres (default is 1km (distance=1000), max. is 5km)
  @param long [optional] $minTimestamp Media taken later than this timestamp (default: 5 days ago)
  @param long [optional] $maxTimestamp Media taken earlier than this timestamp (default: now)
  @return mixed