With more than 44,000 locations across 110 countries, Subway is the world’s largest fast-food franchise. Since its birth in 1965 as a small sub shop, the sandwich king has grown into a corporate giant, one with an interesting history, to say the least.

Subway serves 5,300 sandwiches every minute.

Bloomberg | Getty Images

Subway serves about 5,300 sandwiches every 60 seconds, which is roughly 320,000 sandwiches every hour.

Or think of it like this: 7.6 million subs every day, Business Insider reported in 2014. That’s enough to feed every person in Los Angeles, Dallas and Chicago combined.

There are 38 million options to choose from.

Subway | Facebook 38 million

Subway uses 16 acres of lettuce every day.

Norman Posselt | Getty Images

In a 2013 tweet, the sandwich chain wrote: “Subway uses 16 acres of lettuce per day… How many football fields is that?”

If you’re curious, the answer is approximately 12.

The BMT was named after an actual subway.

Subway | Facebook BMT

Subway was started by a 17-year-old boy.

Subway | Youtube Subway

Subway hosted a fashion show.

Subway | Facebook

Subway made its debut in the fashion industry in 2013, when it launched “Project Subway,” a New York City fashion show and competition challenging up-and-coming designers to create Subway-inspired designs.

In 2014, designers were instructed to create garments “inspired by vegetables found at Subway restaurants.” In the year prior, the task was to create pieces out of sandwich wrappers, napkins and gift cards.

Subway has multiple meanings.

Subway | Facebook

A sub used to cost $0.49.

Subway

The first Subway shop opened by the teenage entrepreneur was called “Pete’s Super Submarines” in Bridgeport, Conn.

On average, a sub would cost $0.49 to $0.69. The shop sold 312 subs on opening day.

All Subway franchises smell the same.

Subway | Facebook

What makes all subways smell the same?

Although it remains a mystery, it’s hinted that the smell comes from the bread: each store bakes its own bread by thawing it before baking it behind the counter. Supposedly, the “ caramelization smell of the sugar has something to do with it,” but it’s unknown what truly makes Subway's smell so unique.

Subway has more restaurants than McDonalds.

Scott Olson | Getty Images

Subway is the world’s largest fast food chain. With nearly 44,000 restaurants in 110 countries, it has more locations than McDonald's.

410,000 people

There was an elevated shop for construction workers.

Westend61 | Getty Images a mobile sandwich shop

The Subway diet actually works.

David Lodge | Getty Images

Jared Fogle, Subway's now infamous former spokesperson, lost 245 pounds eating Subway sandwiches every day.

Fogle ate a six-inch turkey sandwich for lunch and a foot-long veggie sub for dinner. His secret? He never added cheese or mayo to his sandwiches.

Subway was sued for selling 11-inch foot-long subs.

Matt Corby | Facebook

In 2013, Australian teen Matt Corbey took to Facebook to publish his disappointment with his 11-inch “footlong” sub after he measured a sandwich.

class action suit

Subway bread used to share an ingredient used to make yoga mats.

D-Ozen | Getty Images

The company may have been fooling us all with its “Eat Fresh” slogan.

Although it is FDA-approved, the ingredient azodicarbonamide, a chemical commonly used in yoga mats, shoe rubber and synthetic leather, was found in the sandwich chain's bread products. Subway phased out the ingredient by mid-2014 after a backlash.

Theres not much difference calories wise between Subway and McDonald's.

Tetra Images | Getty Images

A 2012 study conducted by UCLA and other research centers found that kids and young adults (ages 12 to 21) consumed roughly the same amount of calories eating a meal at Subway or McDonald's. They ultimately overate at both. Calorie counts were based off of the nutritional information provided on each company’s website.

The study also revealed that on average, McDonald’s sandwiches tend to be less caloric than Subway’s (572 vs. 784 calories).

Subway has a secret menu.

Subway | Facebook secret menu

You can get free Subway when it rains in Los Angeles.

Sean Pavone | Getty Images southern California

A New York church serves Subway sandwiches.

Subway

In Buffalo, N.Y., you can head over to Sunday morning mass and pick up a footlong sub while you’re there.

The Rev. Darius Pridgen of True Bethel Baptist Church opened up the franchise in 2003 to provide job opportunities and feed the hungry.

Subway replaced ham and bacon with halal meat at some locations.

Subway 185 of its stores

Subway broke a Guinness World Record.

Subway | Twitter

In 2015, Subway broke the Guinness World Record for “ Most people making sandwiches simultaneously.”