LOUISVILLE, Ky. (WHAS11) -- It's a little bit of history and a whole lot of fun this weekend at the Kentucky Derby Museum with a new exhibit honoring one of the greatest horses of all time: Man O' War.

Starting Saturday "Man O' War: The legacy" is open at the museum.

During his career just after World War I he won 20 of 21 races.

Many items in the exhibit are on loan from collector Ken Grayson, including the saddle used on Man O' War during his match race with Sir Barton, the first-ever Triple Crown winner.

This interactive exhibit covers the life of the famous thoroughbred and his impact on racing even though he never ran in the Derby.

“We look at racing in the early 20th century, we look at the dominance of Man O’ War as a racehorse, what made him so special. We also look at his impact on the Kentucky Derby even though he as a horse did not compete in that race. We look at his two sons Cydle van Duzen and War Admiral who did run in the Kentucky Derby. War Admiral won the Triple Crown in 1937 and we also look at kind of his popularity and the legacy that he left as he really did transcend racing and become a part of popular culture,” said Chris Goodett of Creative Collections.

There is no separate admission for the Man O' War exhibit--all you need is a ticket to the Kentucky Derby Museum.