Pick CNN.com's destination on biofuel road trip

(CNN) -- CNN.com's Cody McCloy and his trusty colleague Brian Hardy want your input on where they should stop during their biofuel road trip from California to Georgia.

While they're road-testing the long-distance viability of biodiesel fuel made with renewable resources, Cody and Brian are looking for interesting roadside attractions.

What's most interesting to you? Legal marijuana growers, the nation's best beach or a new school going green?

Vote on their road trip destination from these choices:

Oxford, Mississippi: The U.S. town named after Oxford, England, is full of attractions, including the country's only site that can legally grow marijuana. The state's first university -- the University of Mississippi -- operates the marijuana research facility.

The family of Nobel Prize winning author William Faulkner made their home in Oxford in 1902. Today's politicians have added to the town's historical factor: Oxford will be host to the first 2008 presidential election debate.

Grayton Beach, Florida: Grayton Beach State Park was rated the No. 1 beach in the nation in 1994 for its pristine environment and great camping by Dr. Stephen Leatherman, better known as the expert "Dr. Beach."

The scenic area includes massive sand dunes and miles of trails for bikers and hikers. The town of Grayton Beach houses an 1890 two-story home known as "Wash-A-Way" -- possibly because of a hurricane that almost did so. See map of Cody's route »

Enterprise, Alabama: A tornado roared through Enterprise, Alabama, in March 2007, killing eight students at the local high school. That high school and the neighboring Hillcrest Elementary School were destroyed.

Hillcrest is now being rebuilt with a geothermal heating and cooling system. The system will run on water, tapping into the wells underground, in order to save energy.

Enterprise is also home to the world's only monument to an agricultural pest -- the Boll Weevil Monument -- whose inscription reads, "In profound appreciation of the boll weevil and what it has done as the herald of prosperity."

Send your ideas on where Cody and Brian should enjoy some roadside attractions here.

Check one of the three choices in the Quick Vote box near the bottom of CNN.com's special report: American Road Trips.

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