In my mind it makes sense.
Anyway, if you have nothing that takes precedence today or any other day, you may want to watch this-
Notes on Writing Weird Fiction by H. P. Lovecraft
Literary Composition by H. P. Lovecraft
Both of the above are from The H.P. Lovecraft Archive
'The collection includes extensive holdings of manuscripts, letters, editions of Lovecraft's works in all languages, periodicals, biographical and critical works, and many supportive collections of manuscript and printed materials of Lovecraft friends and associates. There are more than 1,000 books and magazines, in 20 languages, containing material by or about Lovecraft plus over 2,000 original letters and manuscripts of his essays, fiction and poetry. Many of the papers were deposited in the library a few months after Lovecraft's death in 1937; others have been added by gift and purchase over the years.' (Brown Uni)
(Wow, my journals look the same! Now I'm not ashamed of how I keep notes :)
So here they are as listed on Wikipedia-
Historical-
Pascoag, Rhode Island, in "The Horror at Red Hook".
Chepachet, Rhode Island, in "The Horror at Red Hook".
Binger, Caddo County, Oklahoma, in "The Mound".
Copp's Hill, Boston, Massachusetts
Red Line
Pawtuxet (now Cranston, Rhode Island).
Newburyport, Massachusetts
Ipswich, Massachusetts
Dunedin, New Zealand
Ayer, Massachusetts
Bolton, Massachusetts
Salem, Massachusetts
Brattleboro, Vermont
Albany, New York
Many locations within his hometown of Providence, Rhode Island, including the (then purportedly haunted) Halsey House, Prospect Terrace and Brown University's John Hay Library and John Carter Brown Library.
Danvers State Hospital, in Danvers, Massachusetts, which is largely believed to have served as inspiration for the infamous Arkham sanatorium from "The Thing on the Doorstep".
Catskill Mountains, New York.
New York City, New York.
Mainalo Mountain, Arcadia, Greece.
Tegea, Arcadia, Greece.
Kilderry, Ireland.
Nome, Alaska
Noatak, Alaska
Fort Morton, Alaska, in "The Horror in the Museum".
New Orleans, Louisiana (and a mention of Tulane University) in "The Call of Cthulhu".
Newport, Rhode Island
Paterson, New Jersey, in "The Call of Cthulhu". (YAY! NEW JERSEY :)
Mammoth Cave, Kentucky, in "The Beast in the Cave".
Oslo, Norway, in "The Call of Cthulhu".
(Been to a couple of those places)
Fictional-
Miskatonic University in the fictional Arkham, Massachusetts.
Dunwich, Massachusetts.
Innsmouth, Massachusetts.
Kingsport, Massachusetts.
Aylesbury, Massachusetts.
Martin's Beach
The Miskatonic River.
The fictional Central University Library at the real University of Buenos Aires in Buenos Aires, Argentina. According to Lovecraft, there is a copy of the Necronomicon here, but the University of Buenos Aires has never had a "central" library.
(Um, not to any of those. Least not that I am aware of in this form and century ;)
Black Phoenix Alchemy Lab's H.P. Lovecraft collection
(I have their Shoggoth from this collection, and some from their other collections as well.)