On the Verge; or, The Geography of Yearning is a play written by Eric Overmyer. It premiered in 1985 at Baltimore's Center Stage. The original cast consisted of Libby Boone, Susan Barnes, Paddi Edwards, and James McDonnell. The script makes extensive use of esoteric language and pop culture references from the late nineteenth century to 1955. The cast consist of three lady explorers and eight diverse beings they encounter on their travels, which include different times as well as different locations. The aforementioned eight beings are intended to be played by a single actor. The play is published by Broadway Play Publishing Inc., and continues to be performed.