Become the Bat.

I would make me even richer, and than when i have soo much power , i will let all the money go around the world, so no one is poor. then i would also build alot of Theme parks, and do a better tomorrow for nature, and stuff like that

Invest heavily in green energy, the biobased economy and the reuse of scarce materials.

If I were a billionare I wouldn't only change the world, but also my world. I'd build the biggest and most comprehensive spandexwear collection in existance. Sportswear, leisurewear... the works. I'd scout every place on the globe and the internet to buy the rarest and most desired pieces of spandexwear from the past, present and future. I'd even pay someone to create me a set of armors. The best part? Doing this wouldn't take more than $100,000

Seriously though, if I were a billionaire, I'd also investigate on making a safe investment. Like a business or a service that benefits the people, like a non-profit organization that helps students with low income to enter college. Or a local company that sells and buys videogames at competitive prices, since Gamestop is soon leaving Puerto Rico.

I'd donate money to those poor Syrian refugees and the African kids who need food and water.....

Lol nah fuck them scrubs, I'd keep it all to myself.

I would fully back the production of Kung Pow! 2.

I think from 1000 million I would keep about 20-25 million for my family and me.
I would donate money for my hometown.
I would donate money for reducing pollution.
I would donate money for education, police and healthcare.

I am very sorry for all the poor people in the world, which suffer hunger and war and much more, but I fear even 1000 million can not change very much, if it only comes once. We need much more money than "only" 1000 million to change a lot - and not only once, but each year.
So I would donate the majority of the money for my home country.

And I would HOPE that other rich people will follow!
If everyone in the world, who has got more than 1 million, donates 10% of his money then the world can be a MUCH better place.

The thing is, all the billionaires money, and all these big corps money are just there, and most money in the world doesnt even exist, its all just digital, but if you want to earease poverty, you have to get all those billions of dollays laying around and spread them out to the world, and make it go around, so it doesnt stay at one place too long.

But if that would be the case, you have to be ready to mass redo the whole transportation system, no more fossile fuel and stuff like that, more efficient ''green'' trains. Ban cars in big cities, (some cities have already done that). New rules/reforms to the  indutries and how they should it make it more envoirmental friendly.

Because if all the pooor people become rich. We will sit in the shi*ter if we dont think about the nature first. Elon musk ( i think hes called) is one incredibly pioneer in many things. More billionairs should be like him.

I would create programs for the poor to get medical care, education and in extreme poverty cases, food, clothing and housing. Shit would CHANGE if I were a billionaire.

I would start a housing project with big shared rooftop gardens. I would want to reach an equal admixture of elderly, families with kids, students, rich yuppies and people dependant on benefits.
There would be vegetable gardens and greenhouses to take care of together. The kids could learn about plants and animals and growing their own crop and actually have places to play in and the adults would get healthy food from direcly in front of their door.

I would also push for more trees in the streets, broader walkways and more life on the streets in general. Also I would build nice, retro styled houses if I got the chance. The stain steel and glass cubes they build nowadays are a pet peeve of mine.

I realize that this sounds like the most hippie Idea ever and that there is a big probablility that it wouldn't work out, but I want to be able to improve overall quality of life i my city and nature and community is always a good start to that.