Classic horror pre 1970's
 

Some of my favorite classic horrors are the old Corman ones like The Pit and the Pendulum, the Masque of the Red Death, the Fall of the House of Usher, etc but there's a lot of good horror from that time period:

What I've watched and liked from the 20's to 1970 by decade

1920's
Nosferatu
The Phantom of the Opera

1930's
Dracula
Frankenstein
The Mummy
The Mask of Fumanchu

1940's
A Picture of Dorian Gray (1945)
The Wolfman

1950's
The Seventh Seal
House of Wax
The Creature from the Black Lagoon
The Fly
House on Haunted Hill

1960's
13 ghosts
The House of Usher (Corman)
Psycho (Hitchcock)
The Innocents
The Pit and the Pendulum (Corman)
The Haunting (1963) - possibly the scariest G-rated movie ever
Carnival of Souls
Phantom of the Opera (Hammer films)
Tales of Terror (Corman)
Tower of London (Corman)
The Birds (Hitchcock)
Kwaidan/Kaidan (Japanese horror, an old ghost story, I loved it)
Masque of the Red Death
The Last Man on Earth (Remake stars Will Smith: I AM LEGEND)
Onibaba (More Japanese horror, but it's a goodie)
Tomb of Lygeria
Night of the Living Dead (Romero)
Rosemary's baby

Hope you enjoy them as much as I did!

Did you bother to read the first post?

I want to say that most of those do have a large mansion or castle in them. Some drawn, some actual sites. The mansion in the haunting is pretty awesome. The masq has a smaller castle. House of usher is a drawn/painted mansion. The innocents exterior is of an actual mansion if i recall. Phantom doesnt have an exterior as i recall though the interior shots are very atmospheric. The house on Haunted hill has a great shot of a creepy post modern manse and pit and the pendulum has great ext. Shots of a castle. The seventh seal has ext. Shots of a mideaval castle/baily tor as i recall and nosferatu has exteriors of an old castle as well as lugosi's dracula and frankenstein. Kaidan has japanese feudal architecture. Last man on earth i think ends in a church. 13ghosts is set in a mansion i believe. Is that what you mean?

I would say this post answers the original question far better than the list of your favorite movies by decade.

I also wouldn't "most" of the movies in your list have a painting of a castle in them. A more accurate statement would be that a few of them do.