Gilcrease Museum

1400 N Gilcrease Museum Rd, Tulsa
Gilcrease Museum is a museum located northwest of downtown Tulsa, Oklahoma. The museum houses the world's largest, most comprehensive collection of art of the American West, as well as a growing collection of art and artifacts from Central and South America. The museum is named for Thomas Gilcrease, an oil man and avid art collector, who began the collection. He deeded the collection, as well as the building and property, to the City of Tulsa in 1958. 

Source: gilcrease.org