This past weekend, I had the chance to stand face to face with an intimidation beast... a domesticated herbivore, no less. I was in Amish land at a farm, and took nick to see some animals. We saw the horse in a pen about 100yds out, and started walking toward him.... Imagine a super zoom lens, but in real life.
This thing was 6'5" at the shoulder, 4-5' wide at the shoulder, and had a head that dwarfed my 3 year old.
So I give you, the Belgian Stallion:
http://www.stallionstation.com/gentlegiants/brooklynsupreme.jpg
http://www.mccoys.com/files/images/Radar.jpg
http://hometown.aol.co.uk/lindaggeorge/Belgian%20Horse.jpg(Fence is 5'7")
http://www.askthefarrier.com/wp-content/uploads/2008/03/alter-real.jpg (the colt is about the size of your average carnival horse)
A pair of these is apparently good to drag 17000lb. This guy had muscles that weighed more than me, and I'm kinda tubby. Each shoe took 3ft of iron stock to make.