If the Great American Road Trip is so great now, imagine what it would've been like last century: in the age of early automobiles, charming roadside motels, and real retro diners where milkshakes come in tall, frosty glasses instead of junky plastic cups.
Our travel nerd hearts simply leapt with glee when we learned Boston Public Library had recently uploaded a set of 25,000 vintage Tichnor Brothers postcards, dating to the 1930s and 40s. The postcards hail from each continental U.S. state (sorry, Hawaii). When strung together, they map an old-school, cross-country road trip we'll never get to take in real life.
Sit back, turn off your GPS, and enjoy the ride.