Category
page 1Cthulhu Mythos locations
Arkham
Arkham () is a fictional city situated in Massachusetts, United States. An integral part of the Lovecraft Country setting created by H. P. Lovecraft, Arkham is featured in many of his stories and those of other Cthulhu Mythos writers.

R'lyeh
upright=1.35|thumb|The location of R'lyeh given by Lovecraft was in the southern Pacific Ocean. August Derleth placed it at about . Both locations are close to the Pacific Pole of inaccessibility#Oceanic pole of inaccessibility|pole of inaccessibility or "Nemo" point, , a point in the ocean farthest from any land mass.
'''R'lyeh' is a fictional lost city that was first mentioned in the H. P. Lovecraft short story "The Call of Cthulhu", first published in Weird Tales'' in February 1928. R'lyeh is a sunken city in the South Pacific and the prison of the entity called Cthulhu.

The Nameless City
1921 short story by H. P. Lovecraft
Celephaïs
"Celephaïs" () is a fantasy story by American horror fiction writer H. P. Lovecraft, written in early November 1920 and first published in the May 1922 issue of the Rainbow. It is part of the body of work which later came to be known as Lovecraft's Dream Cycle. The title refers to a fictional city that later appears in other Dream Cycle stories, including Lovecraft's novella The Dream-Quest of Unknown Kadath (1926).
Lovecraft Country
real and fictitious locations in New England related to H. P. Lovecraft's fiction
Carcosa
thumb|Abstract interpretation of Carcosa
Carcosa () is a fictional city in Ambrose Bierce's short story "An Inhabitant of Carcosa" (1886). The ancient and mysterious city is barely described and is viewed only in hindsight (after its destruction) by a character who once lived there.
Hyperborean cycle
series of short stories by Clark Ashton Smith