Marriott's Great America (Maryland–Virginia)

Marriott's Great America was a proposed amusement park and resort planned for two separate locations in the Baltimore–Washington metropolitan area in the early 1970s, with an intended opening date of 1976. The Marriott Corporation hoped the park would become the centerpiece of its Great America theme park chain, alongside its parks in Gurnee, Illinois (now Six Flags Great America) and Santa Clara, California (now California's Great America). Marriott encountered heavy opposition at both sites where it intended to build, Savage, Maryland, and Manassas, Virginia, which led the company to abandon their development plans. The company later revived the concept for a site in Guilford, Maryland, but an eventual loss of enthusiasm led to that project's cancellation in 1980.

AmusementPark data from Wikidata (CC0). Summary from Wikipedia (CC BY-SA).