These are seven of the world's scariest rollercoasters

Here are seven of the world's scariest roller coasters. Many thrill-seekers will travel the world to find the latest and greatest theme park rides and these seven will be at the top of a lot of people's lists.

1. Yukon Striker at Canada's Wonderland

Height: 68 metres

Length: 1,105 metres

Top speed: 81mph

2. Millennium Force at Cedar Point

Height: 94 metres

Length: 2,010 metres

Top speed: 93mph

3. Superman: Escape from Krypton at Six Flags Magic Mountain

Height: 126.5 metres

Length: 376 metres

Top speed:100mph

4. Initimidator 305 at Kings Dominion

Height: 93 metres

Length: 1600 metres

Top speed: 90mph

5. Top Thrill Dragster at Cedar Point

Height: 130 metres

Length: 850 metres

Top speed: 120mph

6. Fury 325 at Carowinds

Height: 99 metres

Length: 2012 metres

Top speed: 95mph

7. Kingda Ka at Six Flags Great Adventure

Height: 139 metres

Length: 950 metres

Top speed: 128mph

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