The most famous of the amusement parks on Coney Island, Luna Park opened in 1903. Its circus elephants are fortunately long gone, but it is still possible to ride the Wonder Wheel (opened in 1920) and the clackety Cyclone roller coaster (1927). The Cyclone ($10), is a wooden roller coaster that reaches speeds of 60mph and makes near-vertical drops.
The Cyclone is now listed on the National Register of Historic Places. There are also newer rides, including the Thunderbolt ($10), a roller coaster with a 90-degree vertical drop and 100ft loops. Check online for opening days and times, which vary by month.