BALTIMORE (WJZ) — Did you know that ballparks around the U.S. sell more than 25 million hot dogs every year?

They’re sure to be a best-seller at Wednesday’s O’s game versus the Nationals.

Camden Yards will be selling $1 hot dogs to celebrate National Hot Dog Day!

The O’s are also giving away 20,000 special hot dog inspired T-shirts featuring the three most popular toppings: ketchup, mustard and relish.