This series, which spotlights the world's best waterslides, opens with a look at the Insano in Fortaleza, Brazil, which stands at 135 feet tall. Also: an indoor, near-vertical looping slide in Vermont; an indoor bungee jump into water at the Center of Gravity in Edmonton.

Area 47, an outdoor playground located at the base of the Australian Alps, is visited. Also: a look at the Constrictor at Wet 'n Wild in Phoenix and the Bomb Bay at Wet 'n Wild in Orlando.

Some of the world's tallest and fastest waterslides are spotlighted in Brazil, Texas and Germany.

The world's tallest raft ride in Venice, Italy; The Master Blaster in Texas; the only slide in the world that runs through a rain forest.

Germany's Tropical Islands, a giant indoor water park housed in an old blimp hanger, is visited. Also: waterslides in Denver and San Antonio are spotlighted.

Ride the tallest halfpipe in the world at Aquatica in Texas. Then slide, dive and swing into New Jersey's Mountain Creek Waterpark. Finally, brave the world's only double looping water slide at Wave Water World in Austria.

We're trotting the globe and riding the world's most extreme water rides. From the world's tallest slide in Brazil to the world's largest indoor waterpark in Germany - we're getting wet and counting down the world's best rides.

Explore some of the most extreme waterparks in the world, from Stukas, a terrifying 60-mph waterside in Italy, to the Destroyer, a monstrous 300-foot-long homemade waterside in Vail, CO.

The Tower of Power in the Canary Islands drops riders 250 feet into a shark tank; and in Costa Rica, a slide with a speed of about 45 mph is highlighted. Also: a chance to experience the wild rapids in North Carolina.

Prepare to scream your face off as we plunge 7 stories into a cave in the Bahamas. Then, brace yourself for the world’s fastest (and tallest) headfirst slide in Canada and a 260-foot, free-fall slide in Texas.

Hold on as we take you to China's only water slide that shoots riders upside down. Next, a 300-foot slide drops riders into a Bahamian shark tank. Then, it's off to Wisconsin for the world's longest, fastest indoor water coaster.

First stop, "The Beast of the Middle East," a 9-and-a-half-story water slide in Dubai. Next, it's off to Virginia Beach for 4 monster slides with more than 1,200 feet of drops and loops. Finally, we venture to homemade island slides atop mountains in Maui.

Riders in Brazil are sent speeding into a tank of piranhas; and in Utah, a 100-foot homemade slide ends in a kiddie pool.

At Canada’s largest waterpark, we visit a terrifying 6-story, near-vertical slide. Next, we travel to San Diego for the only wave machine in the US that lets you surf a monster curl standing up. Finally, plunge 9 stories into a shark tank in the Canary Islands.

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A water park first-timer flies through a 60-foot tornado in Australia, couples scream up and down the body of a giant snake in the jungles of Guatemala and friends flow down a slide that Mother Nature's been working on for eons.