This article contains plot spoilers for the 2017 series of Twin Peaks.
A nondescript convenience store and the place "above" it were inhabited by a number of supernatural beings.
The store itself was a generic, one-story shack labeled "CONVENIENCE STORE" and outfitted with a pair of gas pumps. Its exact location was indeterminate, as it could apparently appear and disappear in an erratic manner.
The stairs on the right side of the building did not lead to an upper floor; instead, those who mounted them traveled to an interior space described as being "above" the store.
After a the Trinity nuclear test on July 16, 1945, woodsmen rushed about outside a one-floored convenience store with cans piled behind the window. An outside staircase linked to its roof above it. A bright explosion and smoke manifested within the store itself.
While he was trying to explain his disappearance to his FBI colleagues, Phillip Jeffries alluded to a room above a convenience store and a meeting he had witnessed there. At this gathering, many spirits were gathered to "discuss" garmonbozia, a green Formica table missing a circular piece on it and with chrome trimming, a green ring, and electricity. The room was dirty and spare, with three covered windows and disparate furniture. After the meeting, the room seemed to transform into the curtained waiting room of the Black Lodge, as BOB and the arm crossed through into a hallway, laughing. Before the meeting, the arm's whooping could be heard emanating from a telephone pole numbered six.
MIKE stated to FBI Special Agent Dale Cooper in a dream that he and BOB – another spirit – had once lived among the people, above a convenience store. In the following days, following clues from this dream, Cooper determined that the twine used to bind Laura Palmer before her murder had been purchased at the Quik Stop convenience store in Twin Peaks.