The Pizza Worth Traveling For

Any day is a great day to enjoy your favorite slice of pizza, but every year, the third Friday in May is dedicated to this delicious creation and those who can't get enough. Friday, May 20 is National Pizza Party Day, and while your favorite local restaurants are likely offering deals and specials to celebrate, this annual tradition should also serve as inspiration to travel to uncover even more great pizza.

While there are sensational pies to be had from coast to coast, passionate pizza eaters in search of their next favorite slice should look no further than these five U.S. cities.

The Valley of the Sun is certainly known for its heat, and visitors will encounter plenty when they step into some of this city's best pizzerias. The Parlor in Midtown, which has been voted the number one pizza in the state of Arizona, is an absolute must for mouthwatering wood-fired pies, but Phoenix offers a remarkably robust selection of worthwhile pizza joints that many swear by, including POMO, Spinato's, Pizzeria Bianco and Federal Pizza.

A list of some of the best pizza places in the valley wouldn't be complete without mentioning other standouts such as Freak Brothers, Forno 301 and Ziggys Magic Pizza Shop.

The New York-style pizza is iconic, and pizzerias in cities all over the country advertise it for good reason because, quite frankly, NYC pizza is second to none. The five boroughs are home to only the most passionate, creative and perfection-seeking of dough-tossers, sauce-spreaders and cheese-sprinklers, so trying to rank the best spots is a fool's errand.

Instead, visitors should keep an open mind and open eyes as they explore to see where the longest lines are. Places like John's of Bleecker Street (coal-fired brick oven pizza dating back to 1929), Best Pizza in Brooklyn's Williamsburg neighborhood (the classic NYC slice wood-fired) and Greenwich Village institution Joe's Pizza (a hit with tourists seeking an authentic New York street slice) are great jumping-off points, but no visit to the Big Apple should be limited to just one slice.

Pizza lovers around the world are familiar with Little Caesars and Domino's, two massive chains headquartered in Detroit and nearby Ann Arbor, Michigan, respectively. But your next trip to Detroit shouldn't include either unless you've got an endless appetite as the Motor City is pumping out far better pizza at places like Buddy's Pizza, Loui's Pizza and Tomatoes Apizza.