Editing Six Flags AstroWorld (section)

{{Short description|Defunct theme park in Houston, Texas, U.S.}}
{{good article}}
{{use mdy dates|date=July 2021}}
{{Infobox amusement park
| name = Six Flags AstroWorld
| logo = Six Flags AstroWorld transparent logo.png
| logo_size = 
| alt = 
| logo_caption = 
| image = Six Flags Astroworld entrance gate.jpg
| image_size = 
| caption = Entrance gate, 2004, one year before demolition
| slogan = 
| resort = 
| location = [[Houston]], Texas, U.S.
| location2 = 
| location3 = 
| coordinates = {{Coord|29.6755|-95.4074|type:landmark_region:US-TX|display=title,inline}}
| pushpin_map = Texas
| theme = 
| owner = {{plainlist|
* Hofheinz family (1968–1975)
* [[Six Flags (1961–2024)|Six Flags]] (1975–2005)
}}
| operator = 
| general_manager = 
| status = Removed
| opening_date = {{Start date|1968|6|1}}
| closing_date = {{End date|2005|10|30}}
| previous_names = AstroWorld (1968-1975)
| season = 
| visitors = 
| area_acre = 
| rides = 
| coasters = 
| water_rides = 
| other_rides = 
| shows = 
| homepage = 
| footnotes = 
}}
'''Six Flags AstroWorld''', also known simply as '''AstroWorld''', was a seasonally operated [[amusement park]] in [[Houston, Texas]]. Owned and operated by [[Six Flags (1961–2024)|Six Flags]], the park was situated between Kirby Drive and Fannin Street, directly south of [[Interstate 610 (Texas)|I-610]]. The park opened on June&nbsp;1, 1968, and was developed originally and constructed as part of the [[NRG Park|Astrodomain]], the brainchild of local philanthropist and former Houston mayor [[Roy Hofheinz]], who intended it to complement the [[Astrodome]].<ref name=hofheinz/> The Hofheinz family sold AstroWorld to Six Flags in 1978.

Notable rides featured at the park included the [[Texas Cyclone]], a wooden [[roller coaster]] built in 1976 that was modeled after the well-known [[Coney Island Cyclone]], and [[Thunder River (ride)|Thunder River]], considered the world's first successful [[river rapids ride]] when it opened in 1980. WaterWorld, an adjacent [[water park]], was acquired and added to AstroWorld in 2002. Following declining revenue, rising property value, and other issues facing Six Flags, the company closed AstroWorld permanently after its final day of operations on October&nbsp;30, 2005, the final night of Fright Fest. Many rides were sold at auction or relocated to other Six Flags' properties, and demolition of the remaining structures was completed by mid-2006.