Along Interstate 40 sits Twin Arrows Trading Post, or at least its ruins. Thanks to the Route 66 Postcards Facebook page, the top photo was posted. It looks like it was from the late 1950s or the early 1960s.
According to Route 66 Postcards:
Here is an "early, then, & now" collage of postcards and a recent photo of the iconic Twin Arrows Trading Post between Winslow and Flagstaff, Arizona on Old Route 66. It was originally built in the late 1940s as the Canyon Padre Trading Post and became the Twin Arrows Trading Post in 1960. It was famous for two giant arrows made from utility poles out front. The complex includes a separate diner. Jean and William Troxell operated it from 1955 until the 1980s. It closed in the late 1990s. The land is currently owned by the recently built Twin Arrows Casino which is north at the same exit at I-40 & U.S. 180. Unfortunately, in recent years vandals have virtually destroyed the remnants.
Here are the twin arrows today:
Hopefully, the twin arrows can be moved to a safer site (perhaps the Twin Arrows Casino Hotel or its new travel center) and be restored and preserved.