Ohio is one of 10 states holding contests to pick their party's presidential nominee on Super Tuesday, but it has been the main focus of attention for GOP candidates because it will be a major battleground state in the general election this November.

The conventional wisdom has been that whoever takes Ohio in the general election goes on to win the White House, which gives Tuesday's contest a lot of potential momentum for the eventual winner.

Two mysterious men pull up to the courthouse and head to the public records office. They're strangers, and they ask a lot of strange questions like, "I'd like to look at Mayor John Doe's property deeds." Or, "I want to see Congressman Smith's voting records."

Adele Jedynak makes monkey sounds to a group of kids who are steps away from playing Sock Monkey bowling and plush-primate parachuting. It's all part of the Sock Monkey Madness Festival, the eighth annual festival dedicated to the sock monkey in Rockford, Ill.

Every so often, pieces of heaven crash into Earth.

They can come from our own solar system, or millions of light years away. Few of us are lucky enough to get our hands on one of these space rocks. But for meteorite hunters and dealers such as Ruben Garcia, touching a piece of outer space is a daily routine.

The Best Hunting Grounds

One of Garcia's favorite spots to go meteorite hunting is an enormous dry lake bed in southern Arizona.

The vast majority of the 175 indigenous languages still spoken in the United States are on the verge of extinction.

Linguist Elizabeth Little spent two years driving all over the country looking for the few remaining pockets where those languages are still spoken — from the scores of Native American tongues, to the Creole of Louisiana. The resulting book is Trip of the Tongue: Cross-Country Travels in Search of America's Lost Languages.

There's a Mystery Machine sitting outside Andrew Borakove's nondescript warehouse on a quiet street in Lincoln, Neb.

"I can never be depressed driving around town, because there's always some 4-year-old waving to me manically," Borakove says.

The mystery about the Scooby Doo replica van starts to fade, however, once you notice the bumper stickers on the back. Black background, white font, like a "Got Milk?" ad: "Happiness Is a Warm Gong." "Gongs, Not Bongs." "My Child Is an Honor Gong Player."