With 19 roller coasters, Six Flags Magic Mountain holds the world record for most roller coasters in an amusement park. In 2017, the park had an estimated 3.3 million visitors ranking it sixteenth in attendance in North America.
With the opening of Great American Revolution in 1976, Magic Mountain became the first park in the world to have a modern, 360-degree steel looping coaster (though previous roller coasters with loops had been built and dismantled elsewhere due to safety issues).
On August 29, 2018, the park announced the brand new racing launch coaster West Coast Racers from Premier Rides that would include a revamp of the old Cyclone Bay area into a high energy, urban LA. The ride itself is dubbed the first launched racing coaster in the world and the first quadruple launched coaster, even though the existing Fiorano GT Challenge hold these records. The Möbius loop coaster will be the 20th coaster at the park.
According to wikipedia