The Forsaken Inn

A location, presumably constructed by Men during the Third Age.

The Forsaken Inn is mentioned only once in Tolkien's published works: in The Lord of the Rings, Aragorn II Elessar is in discussion with the Ringbearer Frodo Baggins about the road from Bree to Rivendell, and says, "non have measured the road between Rivendell and the Forsaken Inn, a day's ride east of Bree."

This road, the Great East Road, was used years earlier by Bilbo Baggins, yet the Forsaken Inn is not specifically mentioned in Bilbo's memoirs, There and Back Again (aka The Hobbit).

Perhaps it was simply an abandoned or ruined building by the end of the Third Age, its earlier history lost or 'forsaken'.