Six Flags America shut down permanently after 51 years of operation.
The 131-acre Maryland park in Bowie closed on Sunday, following the announcement of closure plans in May.
Wait times exceeded two hours for popular attractions, including the Superman: Ride Of Steel roller coaster, which experienced mechanical problems on its final day.
Fans expressed concern about the closure.
The park's closure marks the end of an era for the beloved amusement park.
Author's summary: Six Flags America closes after 51 years.