National Cheese Pizza Day

September 5 was dubbed by the Internet as "National Cheese Pizza Day," but much like Earth Day, every day in America is Cheese Pizza Day. In that spirit, here are slices from coast to coast, from foldable plain slices to coma-inducing gut bombs. (Some pies feature a little extra toppings over that bed of cheese.)

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Jennifer Silverberg

The Margarita pizza, with cheese and oregano, from Mr. X Pizza in South St. Louis, Missouri. Read more: Pizza My Heart: Mr. X will ignite your lust for crust.

Lee Klein

A Kings County slice in North Miami Beach: $2.25. Read more: Kings County Pizza Sells Da Real Brooklyn Slice.

Anne Fishbein

This white pie from Vito's in Los Angeles shows off the eternal power of mozzarella.

Laura Hahnefeld

The Mac 'N' Cheese Pizza from Nimbus American Bistro & Eatery in Scottsdale, Arizona. Read more: Nimbus American Bistro & Brewery: Monkey See, Monkey Need to Do (Better).

Sara Kerens

The Hot and Crumbled: Jimmy's Spicy Italian, chopped tomatoes and ricotta at Fireside Pies on North Henderson in Dallas, Texas. Read more: Dallas' Five Best Pizzas.

Flickr user: jeneneng

A cheese slice from Arinell Pizza at 509 Valencia (at 16th Street) in San Francisco. Read more: San Francisco's Top Five Pizzerias.

Dave Lieberman

The stuffed pizza at Tony's Little Italy in Placentia, Orange County, California. Read more: Deep They Delved Us: Battle Chicago Pie.

Robert Sietsema

Polpettine ("Meatball") is a pizza on the Lunch and Late Lunch menus at Pulino's, 282 Bowery in New York City, named New York's Best Pizza in 2011. Read more: Polpettine Pizza -- With a Gooey Egg -- at Pulino's, Dish #59.

Alma Guzman

With wood fire, coal fire, and all manner of other artisan pizza places springing up all over the Twin Cities, it's nice to see someone bucking the trend. Zamboni's Pizza (St. Paul, Minnesota) offers crispy thin crust from a regular ol' deck oven, but the pizza is far from average. Read more: Zamboni's Pizza catering to the Xcel crowd.