Credit: Chris Hagerman (via Wikipedia)
#9 - Eejanaika249 ft. - Fuji-Q Highland - JapanCredit: Geomr (via Wikipedia)
#7 - Thunder Dolphin262.5 ft - LaQua - JapanCredit: 663highland (via Wikipedia)
#6 - Millennium Force310 ft - Cedar Point - OhioCredit: Matt Dempsey (via Flickr)
#5 - Steel Dragon 2000318 ft - Nagashima Spa Land - JapanCredit: thecrypt (via Flickr)
#4 - Tower of Terror377 ft - Dreamworld - AustraliaCredit: Lakeyboy (via Wikipedia)
#3 - Superman: The Escape415 ft. - Six Flags Magic Mountain - CaliforniaCredit: Martin Lewison (via Flickr)
#2 - Top Thrill Dragster420 ft - Cedar Point - OhioCredit: monkeyatlarge (via Flickr)
#1 - Kingda Ka456 ft - Six Flags Great Adventure - New JerseyCredit: Dusso Janladde via Wikipedia
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Cedar Point in Ohio, and Six Flags Magic Mountain in California both have 17 roller coasters each, the most roller coasters at any amusement park in the world.
California has the most roller coasters with 78.
Kingda Ka
Most Roller Coasters start with a chain or powered launch.
It is tied with Canada's Wonderland for the second-most roller coasters in the world, with 16 coasters. Six Flags Magic Mountain has the most in the world with 18 roller coasters.
Disney's Magic Kingdom in Florida has the most roller coasters among all the Disney parks.
The noun 'roller coaster' has no standard collective noun since most roller coasters are not in a group. However, a collective noun is an informal part of language. Any noun the fits the situation can function as a collective noun; for example, a scream of roller coasters, a maze of roller coasters, a park of roller coasters, a tour of roller coasters, etc.
North America
The World's most strongest, the fastest and the scariest roller coasters is the hypersonic roller coaster, the underwater roller coaster, the twister roller coaster, the dinosaur roller coaster and the volcano roller coaster.
All roller coasters have at least one hill and one drop. Most roller coasters also have turns as well. Inversions (going upside down) is typical on steel coasters and rare on wooden ones. Their is always some way to start a roller coaster, a chain or hydraulic launch systems are some. Brakes are on every roller coaster as well.
I would say most do but every teenager is different. If there are afraid of heights or motion they will certainly hate roller coasters
United States