Every state has that one big event each year that draws residents from across the region or even across the nation. Louisiana has Mardi Gras. Kentucky has the Kentucky Derby. South Dakota has Sturgis. Genfare, a company that provides fare collection technology for transit companies, recently tracked down the biggest event in each state, creating a rundown of the can't-miss events across the country.

As the graphic below explores, some states' biggest public events are national music and entertainment festivals, like Bonnaroo in Tennessee, SXSW in Texas, and Summerfest in Wisconsin—which holds the world record for largest music festival.

Others are standard public festival fare. Minnesota hosts 2 million people a year at the Minnesota State Fair (pictured above), the largest of its kind in the U.S. by attendance. Mardi Gras celebrations dominate the events calendar in Missouri, Alabama, and, of course, Louisiana. Oktoberfest and other beer festivals serve as the biggest gatherings in Ohio (home to the nation's largest Oktoberfest event), Oregon, Colorado, and Utah.

In some states, though, the largest annual gatherings are a bit more unique. Some 50,000 people each year head to Brattleboro, Vermont for the Strolling of the Heifers, a more docile spin on the Spanish Running of the Bulls. Montana's biggest event is Evel Knievel Days, an extreme sports festival in honor of the famous daredevil. And Washington's biggest event is Hoopfest, Spokane's annual three-on-three basketball tournament.

Mark your calendar. Next year could be the year you attend them all.

Genfare