Route 66 turns 100 this year. I visited the ghost towns that once thrived along America's most iconic highway.

Source: Business Insider

We were the only people around on this stretch of Route 66 as we wandered through this abandoned motel. Graham Merwin / Business InsiderRoute 66 is one of the US's most iconic highways, connecting Chicago to Santa Monica, California. However, when Interstate I-40 was built, many towns along Route 66 were forgotten.