But many countries have their own fast-food restaurants that are popular among residents.

Let's take a look at some of the best fast food you should consider when traveling.

KFC is extremely popular in China, with over 5,000 restaurants throughout the country.

But with great success comes great competition.

Dico's is one of KFC's top competitors in China, selling, of course, fried chicken.

Along with that, menu items include nuggets, chicken sandwiches, and chicken fries.

If you aren't familiar with Jollibee by now, well, you're missing out.

Though it started out as Magnolia Dairy Ice Cream franchise in 1975 ...

Jollibee today is known for its delicious fried chicken, sweet spaghetti, and aloha burger, along with the piping hot peach-mango pie.

The Filipino fast-food chain serves up chicken joy in over 20 countries worldwide.

In Russia, fast food means blinis, soups, and kasha, made to order.

These classics are healthy, flavorful comfort food.

Though the chain hasn't made much success outside of Russia, it is known to be as big there as McDonald's is in the U.S.

With 14 locations spread throughout the island, Chefette is a family-style restaurant, offering play areas to children while letting you enjoy a variety of flavorful meals, ranging from fried chicken to burgers to roti.

Offering Brazilian steaks at an affordable price, Giraffas is a cross between fast food and casual dining.

It's popular in Brazil and Miami, Florida, with over 350 total locations.

Menu items consist of Brazilian staples like pão de queijo and feijoada as well as burgers, chicken sandwiches, and steaks.

Specializing in seafood, Nordsee is the third-largest fast-food chain in Germany, right behind McDonald's and Burger King.

The chain offers a wide range of high-quality fish and shellfish, from sandwiches to meals.

Italy may be the birthplace of pizza, but Japan is known to have some of the most unique pizzas in the world.

Pizza-La is Domino's biggest competitor in Japan, serving up 30 different pizza-topping variations.

You're likely to find one to satisfy your pizza cravings.

If you find yourself in Singapore, Toast Box is definitely where you should go for a good coffee and delicious food.

Its signature plates include kaya toast with a soft-boiled egg, which is a popular Singaporean snack or breakfast, along with curry chicken, nasi lemak, and laksa.

Specializing in Portuguese African food, Nando's has taken many countries by storm.

The chain was founded in Johannesburg, South Africa, in 1987 and is now in over 20 countries worldwide and wildly popular in places like the U.K.

The secret is the Peri-Peri sauce, which is also available at grocery stores in many countries.

The mixture of flavors and spices on the chicken makes Nando's a place that customers continuously come back to.

With over 1,300 locations, Lotteria is South Korea's number one fast-food restaurant.

The user-friendly kiosks let you surf through the many menu items, like the shrimp, bulgogi, and mozzarella burger.

The shake-shake fries offer a great personal touch because you get to choose your seasoning.

Before McDonald's, was White Castle, the first fast-food hamburger chain in the US, opened in 1921.

Popularly known from the Harold and Kumar film, the slider-sized burgers are sold at locations mostly on the East Coast and in the Midwest, as well as retail stores.

Goody's Burger House is one of Greece's most popular fast-food restaurants.

It offers three types of burgers: classic, extreme, and Angus.

And you're able to add or take off any toppings you would like.

So the next time you travel, engulf yourself in not only the street food, but try the fast food as well.

Let us know in the comments what your favorite fast-food chain is.

And which of these have you tried?