Cake was served and dancers were on hand to help celebrate the festivities.
The first 95 guests to line up for Sunday's celebration got to ride the rollercoaster for free.
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The Cyclone opened to the public on June 26, 1927, and is one of the oldest still-operational roller coasters in the United States.
The coaster was declared a New York City designated landmark in 1988 and was placed on the National Register of Historic Places in 1991.