I want to win the lotto and build a horse sanctuary. Actually, an all-around animal sanctuary that specializes in horses.
I'd also have a huge section for exotics, like big cats and whatnot. It infuriates me to no end when people buy wild animals and think they're going to keep them as pets... but that's a tangent for another day.
On top of that, it would be a wildlife rehab center. I would also hold free educational seminars about animal ownership (especially animals that require specialized care, like horses).
I would also love to become a famous photographer like Bob Langrish. And gallop down the beach and go swimming with my horse. That's a bit more realistic than my other goal. Lol