Today its population is about 20 people, and it is becoming quite difficult to follow Route 66. Route 66.The town found its prosperity in the mid-19th century. Arlington is a ghost town in western Phelps County, Missouri, United States, along a county road that was once U.S. Starting about 1868 the dead were brought to the town to be buried. Video of an abandoned Missouri resort is going viral again and this time law enforcement has a warning for people planning to visit.