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Which country makes the tallest roller coasters?
US companies used to dominate the steel roller coaster market. But as Jason Margolis found out, that鈥檚 no longer true.
(Image: At 310 feet, Millennium Force at Cedar Point in Ohio is now the world鈥檚 seventh tallest roller coaster. It was built by the Swiss company Intamin. Credit: PRI鈥檚 The World ]
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