Maybe the 2nd best picture ever:
wow!!!!!!!!! that is soooooooooo cool!!!!!!!
ODH, any animal can ride a horse, but to race on horses....that's just.....awesome.
The brown horse in the second picture doesn't look too thrilled about who his jockey is.
I assume you guys haven't seen many pictures?
In my opinion the lion isn't riding the horse. I think it got out of its cage and now is trying to eat the horse as it goes by.