With the world’s population steadily growing, the demand for food is higher than ever. And farmers must use the best machines to harvest their crops as effectively and efficiently as possible. Let's take a look at the top 15 biggest tractors and farm machines. #top10 #top15 #top20 Several segments are licensed under creative commons  For more video information, please visit our website. The Top Fives show brings you informational and entertaining top five videos! Join us and subscribe for more. Follow Josh on Instagram! Founder and producer of the Top Fives show.