Marriott's Great America, built by hotel and restaurant operator Marriott Corporation, opened to the public on March 20, 1976.
Less than two months later on May 29, the company opened a second Marriott's Great America – later known as Six Flags Great America – north of Chicago in Gurnee, Illinois.
A third park was initially planned for the Baltimore–Washington metropolitan area, but the idea was later abandoned after several failed attempts to sway local opposition.

The park, though profitable, was still an earnings disappointment for Marriott, leading the company in 1983 to explore options to sell.
An interested party, Caz Development Co., appraised the land value at US$800,000 to $1 million per acre.
Marriott also involved the city of Santa Clara in negotiations, which was already leasing 55 acres (22 ha) of parking space for the amusement park.
Fearing homebuilding on the land by Caz Development would lower home values of existing homeowners, the city council approved a $101 million purchasing agreement on January 31, 1984, by a 4–3 vote that also had to be approved by city residents.
The citywide vote passed, approving the sale by a margin of 3 to 1.
Caz Development then sued the city and Marriott in the Superior Court of Santa Clara County to block the transaction.
The court nullified the sale, forcing the city to attempt to salvage the deal through negotiations with the other parties.
Unable to broker a timely agreement, the city council voted 6–1 to scuttle the sale on February 5, 1985, though the city was still interested in owning the park.
After Marriott refunded a $20 million down payment back to the city, negotiations were restarted.
All parties were able to agree on a compromise, which was signed in marathon sessions taking place in early June 1985.
The city acquired the park for $93.5 million from Marriott, which retained 20 acres (8.1 ha) from the sale for development.
Caz Development settled and was allowed to build a hotel and office near the park, which the city renamed Great America.

Kings Entertainment Company, who owned and operated other amusement parks, was hired in 1985 to manage Great America for the city.
In 1989, the city decided to return the park to the private sector and sold it to Kings Entertainment.
In the agreement, the city would earn 5% of all revenue that exceeds $56 million.
Marriott's Great America, built by hotel and restaurant operator Marriott Corporation, opened to the public on March 20, 1976. Less than two months later on May 29, the company opened a second Marriott's Great America – later known as Six Flags Great America – north of Chicago in Gurnee, Illinois. A third park was initially planned for the Baltimore–Washington metropolitan area, but the idea was later abandoned after several failed attempts to sway local opposition.
The park, though profitable, was still an earnings disappointment for Marriott, leading the company in 1983 to explore options to sell. An interested party, Caz Development Co., appraised the land value at US$800,000 to $1 million per acre. Marriott also involved the city of Santa Clara in negotiations, which was already leasing 55 acres (22 ha) of parking space for the amusement park. Fearing homebuilding on the land by Caz Development would lower home values of existing homeowners, the city council approved a $101 million purchasing agreement on January 31, 1984, by a 4–3 vote that also had to be approved by city residents. The citywide vote passed, approving the sale by a margin of 3 to 1. Caz Development then sued the city and Marriott in the Superior Court of Santa Clara County to block the transaction. The court nullified the sale, forcing the city to attempt to salvage the deal through negotiations with the other parties. Unable to broker a timely agreement, the city council voted 6–1 to scuttle the sale on February 5, 1985, though the city was still interested in owning the park. After Marriott refunded a $20 million down payment back to the city, negotiations were restarted. All parties were able to agree on a compromise, which was signed in marathon sessions taking place in early June 1985. The city acquired the park for $93.5 million from Marriott, which retained 20 acres (8.1 ha) from the sale for development. Caz Development settled and was allowed to build a hotel and office near the park, which the city renamed Great America.
Kings Entertainment Company, who owned and operated other amusement parks, was hired in 1985 to manage Great America for the city. In 1989, the city decided to return the park to the private sector and sold it to Kings Entertainment. In the agreement, the city would earn 5% of all revenue that exceeds $56 million.
California's Great America