Many road-trippers make a beeline for famous highways like Route 66 and the Pacific Coast Highway. But beyond the big-hitters there are some truly stunning lesser-known roads just waiting to be explored. What’s more, you’re less likely to encounter lots of other travellers on these underrated routes, meaning you can savour the feeling of being alone on the open road. Intrigued? These are the best American road trips you’ve never heard of.