Six Real-Life Tony Stark Billionaires Who Have Built Incredible Machines

These six modern-day Tony Starks don't really accept the word 'no'.

Their stubbornness combined with their equally enormous wealth and intelligence give them the unique ability of being able to imagine something and then watch it become a reality.

From Elon Musk's incredible Hyperloop concept, to the game-changing Martin jetpack these creations are literally changing the world around us.

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Much in the same way that Bruce Wayne was able to spend his millions building a secret cave underneath his mansion, these people have built their own childhood dreams.

Whether it's a campervan that looks like Optimus Prime, or a stealth boat that wouldn't look out of place in a bond film these people are literally building the future.