Greatest American Roller Coasters Revealed

Ginger Zee, Rachel Smith take a ride on popular new amusement park attractions.
3:50 | 07/27/13

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Transcript for Greatest American Roller Coasters Revealed
Test Text1 plain Bianna and I are deathly afraid of rollercoasters. I'm also afraid of the dark. But that's a completely different story. Revelations from dan. This story is about other people. I want to hear more about this. Ginger, you want to talk. We took a trip around america, rachel and i, not dan and i, to get a taste of the twistiest, scariest rollercoasters. Reporter: From coast-to-coast, thrill-seekers are flocking to a brand-new crop of coasters this summer, bringing adrenaline levels sky-high. We're getting interesting coasters. Reporter: We're taking on three of the interesting rides. Extreme coasters with record-breaking features. First up, six flags magic mountain, full throttle. This bad boy has the world's tallest loop. And I need some backup. I don't know about this. Will you hold my hand? Absolutely. Reporter: Kurt assures us he has a real job. But he is known as the coaster guy. A theme park critic and devotee. 160-foot vertical loop. It's the world's tallest loop. Reporter: That bad boy roigt there. I had no problem passing the height check. So, we strapped in and took off. I think I handled it pretty well. Immediately, we rocket through that massive loop. At the top, we're hanging upside down at almost 20 stories high. Full throttle doesn't slack from there. We plunge into parkness, got blasted backwards through the track. And then, came into for the final heart-stopping drop. Oh, my gosh. That's the excitement. Reporter: Yeah. Sure does. That's an understatement. Next up, outlaw run. It's the second-fastest wood coaster on the planet. The world's steep et drop and an 81-degree drop. And we're going to take you upside down, not once, not device, but three times on a wood coaster. Reporter: Pass. Luckily, we can count on ginger zee's absolute fearlessness. We're about to ride the biggest, baddest wooden rollercoaster. Outlaw run. Reporter: What am I going to experience? You're going to hit this first drop. And there's just woods below. Reporter: The ride snake plus the ozark mountains. I get squeeze si watching ginger take that plunge. I don't remember half of it. I saw the flash from the picture. And I think I'm like this -- that's what my guess is. Reporter: Sorry, girl. Thanks for taking one for the team. Last but not least, the texas sky screamer. Over 400 feet in the air. You're going to be the first to ride it with its new title as the guinness world record holder. Reporter: Lucky me. To make up for missing outlaw run, I road this merry-go-round not once, but twice. For "good morning america," rachel smith, abc news, los angeles. I think my favorite moment is when she asks the guy, would you hold my hand? Yes. I will told your hand. I love that ginger is smiling, even when she's screaming. Yeah. I was having a lot of fun. And not not at all acting. Nothing scares her. We are clearly not related.

This transcript has been automatically generated and may not be 100% accurate.

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