The graveyard of the Caldos colony.
A graveyard or cemetary was a place where, after death, a person's body was traditionally buried. Such locations were typically accompanied by gravestones. (ENT: "A Night in Sickbay"; TNG: "Sub Rosa")
An example of a tombstone at a pet cemetery
In 2152, Captain Jonathan Archer of the starship Enterprise experienced a dream in which he was burying his dog Porthos in a cemetery exclusive for pets. (ENT: "A Night in Sickbay")
Rura Penthe was known throughout the galaxy as "the alien's graveyard." (Star Trek VI: The Undiscovered Country)
In 2365, Geordi La Forge referred to the surface of Surata IV as a graveyard after Data discovered fossilized animal remains. (TNG: "Shades of Gray")
In 2370, Doctor Beverly Crusher, along with Captain Jean-Luc Picard and Counselor Deanna Troi visited the cemetery at the Caldos colony on Caldos II for the funeral of Felisa Howard, Crusher's grandmother. (TNG: "Sub Rosa")
In an alternate timeline, Commander Chakotay compared walking around on a planet in the Delta Quadrant devastated by polaric ion energy akin to being in a graveyard. (VOY: "Time and Again")
In 2371, the USS Voyager attempted to evade the Vidiians by entering a part of space surrounded by numerous subspace vacuoles. Captain Kathryn Janeway compared it to sneaking around a graveyard at night. (VOY: "Fury")
In 2374, Dukat told Captain Benjamin Sisko that he regretted not killing all Bajorans during the Occupation of Bajor and turning Bajor into a graveyard. (DS9: "Waltz")