Amid a booming economy and the thriving auto industry, families piled into their cars and hit the country's new interstate system.

See All 105 Photos. ... Every year, the Street Rodder Road Tour has combined cross-country road trips with the build of a brand-new statement-making hot rod, built by well-known shops.

The great American road trip has been featured in films as diverse as "Little Miss Sunshine," "Paul," and "Thelma and Louise." But long before cross-country drives became the subject of major ...