Most of us have made it onto a roller coaster at one point or another, even if it was a kiddie ride at the local fair. What most of us haven't done is pushed our adrenaline levels to the absolute max on the scariest coasters in the country.

If you'd like to dip your toe into the life-flash-before-your-eyes terror of some of the most intense roller coasters ever to be designed, this is the list for you. From spiraling monstrosities to dropping hundreds of feet to coasters that reach speeds of 120 miles per hour, these rides are not for the faint of heart.

1. The Voyage at Holiday World

Image: Jeremy Thompson/Flickr

In Santa Claus, Indiana, Holiday World is home to some seriously quirky rides. Family owned and operated, the park's themed areas celebrate four major holidays, including Thanksgiving. The Voyage is a relatively new wooden coaster with a surprising theme — the voyage of the pilgrims. Pilgrims aside, it's a major thrill thanks to record-breaking air time that leaves you grabbing your safety restraints in terror.

2. Kingda Ka at Six Flags Great Adventure

Image: Chin Yip So/Flickr

Jackson, New Jersey, is home to the world's tallest roller coaster. Ride trains are launched using a breathtaking hydraulic launch system to a mind-boggling height of 456 feet before plummeting back to the ground. You'll want a souvenir photo after you take this tiger on.

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3. The Intimidator 305 at King's Dominion

Image: David Fulmer/Flickr

Themed after NASCAR champion Dale Earnhardt, The Intimidator 305 is a steel coaster with a toe-curling drop of 300 feet. One of only a handful of U.S. coasters reaching such heights, it draws thousands of coaster enthusiasts to King's Dominion in Doswell, Virginia.

4. Top Thrill Dragster at Cedar Point

Image: Jeremy Thompson/Flickr

When it comes to coasters, there's no better destination than Cedar Point in Sandusky, Ohio. This thrilling park is home to several record-breaking coasters, including Top Thrill Dragster, which reaches speeds of up to 120 mph. Though Kingda Ka surpassed it in height, the Dragster is still one of the most-terrifying rides in the United States.

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5. El Toro at Six Flags Great Adventure

Image: Adam Ahmed/Flickr

Though nearby Kingda Ka towers over it, El Toro provides its own charm and thrills. Built in 2006, El Toro is a record-breaking wooden coaster with a massive drop that will have you screaming before you're halfway down. As a newer wooden coaster, it's a smoother ride than what you'll experience on vintage coasters.

Up next: 7 More scary roller coasters in the United States

A version of this article was originally published in January 2014.

6. SheiKra at Busch Gardens Tampa Bay

Image: Rev Stan/Flickr

Tampa, Florida, is home to SheiKra, one of the world's largest steel dive coasters. The floorless coaster dangles riders at the top of a 200-foot drop before plummeting them down at a 90-degree angle. The heart-pounding wait before dropping gives you plenty of time to wish you were back on solid ground.

7. Diamondback at King's Island

Image: Sonja/Flickr

Thanks to innovative stadium seating, every passenger on Diamondback at King's Island in Mason, Ohio, has a stunning view throughout the ride. With 10 drops and a thrilling splashdown finale, this is a coaster that leaves you breathless.

8. Millennium Force at Cedar Point

Image: Jeremy Thompson/Flickr

Millennium Force is a steel roller coaster that resides in Sandusky, Ohio. The creation of Millennium Force led to a whole new classification of roller coaster: the giga-coaster. With speeds of up to 93 miles per hour, this ride will definitely blow your hair back.

9. Manta at SeaWorld

Image: Ted Murphy/Flickr

Manta, built in 2009, features one of the most-innovative train styles on steel coasters today. Riders are angled at a prone position, mimicking the gliding stance of a manta ray in the ocean. Each dip and loop is taken face first, making Manta in Orlando one of the scariest rides to handle in the front row.

10. Nitro at Six Flags Great Adventure

Image: Adam Ahmed/Flickr

Thanks to a simple lap-restraint system, Nitro at Six Flags Great Adventure offers one of the scariest plummeting experiences. At 230 feet, it's not a record-breaking coaster, but it's enough to send you right back to the beginning of the ride to take on the terrifying drop again.

11. Cannibal at Lagoon Amusement Park

We get butterflies in our stomach just thinking about the Cannibal's 116 degree vertical drop, so imagine what actually experiencing it can do. With a max height of 108 feet and speeds up to 70 miles per hour, this ride (located in Farmington, UT) will eat you alive from the inside out... hence the name.

12. Skyscraper at Skyplex Orlando

This new polercoaster isn't scheduled to open at Skyplex until 2019, but when it does, it will be the scariest roller coaster ever. It takes a bit of time to climb to the top before the big drop, and the anticipation just might kill you.

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