Can you name the world's biggest restaurant chain? If you said McDonald's, you're wrong. If you said Taco Bell, wrong again. The world's biggest restaurant chain is...Subway. Back in 1965, 17 year old Fred DeLuca borrowed $1,000 from Peter Buck to start Pete's Super Submarines, which is now called "Subway" and has 40,000 plus locations worldwide. Subway's popularity is thought to be because Subway is one of the least expensive restaurants to franchise, and passed McDonald's to be the largest back in 2010. Subway is currently on every continent except Antartica, and 5,300 people decide to eat fresh and have a sandwich from Subway per minute.