The National Road was one of the first highways built by the federal government.

The tavern is on the property of Ft. Necessity National Battlefield in Pennsylvania. If you are curious about George Washington's actions before the war of independence, when he was with the British, you can read further. It was an interesting encounter with the French and the Indians.

Washington actually also bought and owned the tavern at a later period in time.

https://en.wikipedia.org/wiki/Fort_Necessity_National_Battlefield

https://en.wikipedia.org/wiki/National_Road