When Americans cast their ballots in this year's midterm elections, they'll not only be picking who represents them in Congress, but also weighing in on a range of topics that could change their state laws and constitutions.

In the 1940s and '50s, Route 66 was one of America's most popular highways, driving business to small towns from Chicago to Santa Monica. But today, the road and its people have been largely forgotten. Ghost towns, empty motels, and abandoned gas stations line its path. Chief correspondent Abby Narishkin grew up along the road. In celebration of its 100th anniversary, she drove down the old route herself to visit the people and businesses still keeping this Americana legacy alive.