Astroworld opened in Houston, Texas on June 1, 1968, built by the Hofheinz family on land near the Houston Astrodome. It grew into one of the largest theme parks in the American South before Six Flags took over operations in 1975 and rebranded it Six Flags AstroWorld.
Over nearly four decades, the park expanded from an initial 57-acre tract to roughly 110 acres, adding themed sections and a lineup of coasters and thrill rides. Six Flags closed the park permanently on October 30, 2005, citing falling attendance, rising land value, and the expiration of a parking agreement with the neighboring Reliant Stadium.
Stats at a Glance
- Location: Houston, Texas
- Opened: June 1, 1968
- Closed: October 30, 2005
- Original operator: Hofheinz family (1968–1975)
- Later operator: Six Flags (1975–2005)
- Size: About 110 acres at closure
- Notable coaster: Texas Cyclone, a wooden coaster that opened in 1976
The Rides
Astroworld’s signature coaster was the Texas Cyclone, a wooden ride built by Frontier Construction Company that opened June 12, 1976, standing about 93 feet tall and running 3,180 feet of track as a mirror-image tribute to Coney Island’s original Cyclone. The park also added the shuttle-loop coaster Greezed Lightnin’ in 1978, the suspended coaster XLR-8 in 1984, and the indoor Vekoma coaster Mayan Mindbender in 1995, alongside the pioneering Thunder River rapids ride that debuted in 1980.
Closure and Demolition
When Six Flags closed Astroworld at the end of the 2005 season, the company pointed to years of declining attendance and the loss of a long-standing parking-lot arrangement tied to the adjacent stadium. Demolition of the rides and structures ran through 2006 at a reported cost of about $20 million, and the cleared land was sold for roughly $77 million. Today the former park site is used mainly as parking for the Houston Livestock Show and Rodeo, with little left to mark where the park once stood.
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Astroworld FAQs
When did Astroworld open and close?
Astroworld opened on June 1, 1968, and closed permanently on October 30, 2005, after 37 seasons.
Who owned Astroworld?
The Hofheinz family built and ran the park from 1968 until Six Flags purchased it in 1975, operating it as Six Flags AstroWorld until closure.
What happened to the Astroworld site after it closed?
The park was demolished by 2006 and the land was sold; the site is now used largely as parking for the Houston Livestock Show and Rodeo.
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Photo: Chris Hagerman / CC BY 2.0, via Wikimedia Commons.