Quivira was a legendary city of gold that Spanish explorers sought after in the 16th century, often associated with the mythical wealth of the New World. It became a significant part of the stories told by early explorers like Francisco Vázquez de Coronado, who believed it was located in present-day Kansas, and later by Juan de Oñate in his expeditions. The quest for Quivira symbolized the European obsession with finding riches and expanding their territories in North America.