▲If it has weird, extremely gourmet ingredients, your pizza is probably California-style.

▲California pizza is recognizable by its weird toppings, like barbecue chicken or Thai sauces.

▲This Chicago original features a few inch-deep deep crust with a layer of cheese with toppings, then a layer of sauce on top of those.

▲It's typically topped with a mixture of mozzarella and brick cheese.

▲You're going to need a knife and fork to eat this type, and you likely won't be able to finish an entire pie yourself.

▲These bad boys have a super-thin crust, are cut into square slices, and are easy to hold while you sip a pint.

▲This pizza is baked in a steel square pan and has a thin, crispy crust.

▲Greek pizza has olives and feta on it. Greek-style pizza is different. It has a puffy, round, oiled crust, a mix of mozzarella and cheddar cheese, and a lot of oregano.

▲This style of pizza cooks the dough on the grill over hot coals, then adds the cheese and toppings at the end.

▲You can find it in New England at places called "House of Pizza" or "Pizza House," or at Greek restaurants across the country.

▲Often called "apizza," these pies are cooked on wax paper-lined sheet pans in oil or coal-fueled ovens that get extremely hot, giving the crust a nice char.

▲This is authentic Italian pizza... but Americanized somewhat. Dough is fermented nicely, and cheese is typically of an imported variety.

▲The crust is thin and crispy, and toppings are usually just sauce, cheese, and herbs.

▲The pies are often slightly misshapen and sometimes topped with clams. A traditional location to find them is Frank Pepe.

▲To make the pizzas, the dough is proofed, then cooked in an oiled pan. They are often served as a personal pan pizza.

▲Greasy, but never soggy, they're a NYC mainstay.

▲You'll find these at big chains like Pizza Hut, as well as in the southeastern US.

▲This usually means cheese on the bottom, sauce on top.

▲The pizza can be round or square... the important thing is that the sauce and cheese need to be reversed.

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What is a pizza, really? You decide.

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America is a melting pot, and fusion food reigns supreme here. Case in point: the growing availability of sushi pizza.

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This particular variety has an extremely thin crust, topped with sweet sauce and provel cheese.

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Toppings sometimes (but not always!) stretch all the way to the edges of the unyeasted crust.

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You can find this style of pizza in Midwestern cities.

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It is thought to have originated in 1980 at Al Forno in Providence, RI.

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New York-style pizzas are usually cut into large slices that are folded in half for eating.

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For some, pizza is simply food. For others, it's a way of life. But everyone can agree that it's delicious. And while the cheesy, saucy concoction might hail from Italy, Americans have made it uniquely their own. Chicago has its deep dish and New York its greasy, sold-by-the-slice favorite, but there are even more varieties all across the country. Have you tried them all?

Click on to find out!