1. Many, many exciting things like base jumping, and the thing where you jump with stretch rope and swing. Also flyboarding looks like fun. I would love to travel at mach 20 in space so I could visit some exciting places.
2. Having a pet shark live in my house, which will be made of glass except for the bathroom and the shark will swim inside the walls and eat the telemarketers and the people who keep emailing me about college. There will also be jellyfish and a room dedicated to snakes who all love me and wouldn't kill me.
3. Travelling everywhere and having a quality camera for once in my life. I'll hire a butler to feed my pet shark and the snakes.
4. If none of the above work, then just being rich and living extravagantly is fine. It's basically the same thing.