Today, Wendy’s, the fast-food restaurant chain founded by Dave Thomas in 1969, is one of the largest and most popular in the global fast-food market, and one of the most recognizable due to its unconventional approach and innovative solutions. When you hear “Wendy’s,” two things instantly come to mind: square burgers and a funky logo with a playful red-haired girl.

Source: 1000 Logos