These coasters will put your body to the test, battling gravity at every twist and turn. After a ride this extreme, you'll have to be peeled off of your seat.

Splintering Speedsters These wooden wonders are some of the most popular coasters in the country. With rattling bolts and flexing planks, you'll be relieved just knowing you survived the ride. Featured Coasters: Thunderhead at Dollywood in Pigeon Forge, TN; El Toro at Six Flags Great Adventure in Jackson, NJ; The Beast at Kings Island in Mason, OH; The Voyage at Holiday World in Santa Claus, IN. See these coasters in action.

Wrong Way Up Sky-high loops and endless inversions will send you on a breathtaking, head-over-heels adventure. These rides spend the most time upside down. By the end, you'll be asking,"Which way is up?" Featured Coasters: Kraken at Sea World Orlando, FL; Wild Eagle at Dollywood in Pigeon Forge, TN; Hydra the Revenge at Dorney Park in Allentown, PA; Vortex at Kings Island in Mason, OH. See these coasters in action.

Towering roller coasters stretching into the sky, only to drop you hundreds of feet at mind-blowing speeds. Featured Coasters: Kingda Ka at Six Flags Great Adventure in Jackson Township, NJ; Millennium Force at Cedar Point in Sandusky, OH; Diamondback at King's Island in Mason, OH; Intimidator at Carowinds in York, SC.

Get ready to fly at the speed of fear. These are some of the fastest roller coasters on the planet, reaching speeds of up to 128 miles per hour. Featured Coasters: Top Thrill Dragster at Cedar Point in Sandusky, OH; Desperado at Buffalo Bill's in Primm, NV; Xcelerator at Knott's Berry Farm in Buena Park, CA; Bizarro at Six Flags New England.

America’s Top 10 roller coasters as voted on by viewers are revealed in the series finale.

Get ready to fly at the speed of fear. These are some of the fastest roller coasters on the planet, reaching speeds of up to 128 miles per hour. Featured Coasters: Top Thrill Dragster at Cedar Point in Sandusky, OH; Desperado at Buffalo Bill’s in Primm, NV; Xcelerator at Knott’s Berry Farm in Buena Park, CA; Bizarro at Six Flags New England.

The battle rolls on to Australia for a coaster that shoots riders backwards at 100 mph, then to Germany for a ride that twists down 2, 360-degree corkscrews. And finally, we head to the US for a monstrous 5,000-ft coaster.

Insane Coaster Wars: World Domination continues in Germany with the tallest wooden coaster in the world. Next, we travel to Canada to ride an insane 90mph coaster and then back to the US for a gut-wrenching 4G coaster.

A coaster in Spain that accelerates to 80 mph in 3.5 seconds; a ride in Japan with a 121-degree vertical drop; and a zero-g roll in Doswell, Va.

The battle rolls to Australia for a coaster that plummets riders down a 130-foot hill, then to Italy for a coaster that rockets riders from 0 to 70 mph in 2.2 seconds, and finally to the US for the world’s first 4th dimension coaster.

Insane Coaster Wars travels to Italy where riders are launched up a 147-foot-high loop, then it’s on to Canada for a 540-degree helix, and finally to the US for the world’s first hypercoaster, lifting riders over 200 feet into the air.

Dangling coaster Katun drops and rolls passengers in the Italian skies.