For me, I mean, it starts in the station.

You have a seat in the car, and you let the lap bar down.

When that lap bar is locked down, I feel like Superman, I start going up the lift hill. I'm like,

this is cool, this is good. But then, I'm like, wow, those seagulls are way down there and I'm

way up here. There's something wrong here. My heart just starts beating a little bit.

And then the next thing you know, there's speed like you've never felt before.

You're floating over a big hill.

And you just feel like, wow, I'm like that bird that I just saw.

I'm flying.

After some ups and downs and being on your side, you just kind of come into the station and just hear people clapping

and laughing.

Hair's like straight up.

You look ridiculous.

A successful ride is one where you get off

and you're like, I need to do that again.

That's Corey Kieburt. He's one of many people, young and old, who enjoy riding roller coasters every year. And he's not just an

enthusiast. He designs them for a living. I'm an engineer and partner at the Gravity Group,

a wooden roller coaster company.

A new roller coaster often sets a theme park back tens of millions of dollars. It involves the

labor of designers, accountants, construction crews, and engineers like Kiebert. After it's built,

it requires costly ongoing maintenance and safety checks.

But the right coaster and the right place can make back its cost many times over.

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