McDuck Manor, as the name implies, is the mansion home of Scrooge McDuck. According to various comics about him, he lives in an area above his Money Bin. But in other media, such as different comics, children's storybooks, and the television series DuckTales, he lives in a large mansion.
McDuck Manor (under the name of McDuck Mansion) first appears alongside Scrooge himself in 1947 in Christmas on Bear Mountain by Carl Barks. Scrooge is first seen sitting in an armchair in his mansion's heavily decorated living room, looking through a window. Scrooge is seen again living in his mansion at the beginning of Hoodoo Voodoo by Carl Barks again. A considerably less luxuriously furnished version of McDuck Mansion was seen again in Paul Murry's The Firebugs, Scrooge's first official appearance outside of Barks's stories, and the Mansion was prominently featured in Bob Moore's Trail Blazer, which came out around the same time as The Firebugs.
Even after Carl Barks created the Money Bin on top of Killmotor Hill (1951), he portrayed Scrooge as living in a mansion. In Barks' 1955 one-pager Easy Mowing (Uncle Scrooge #9), we can see Scrooge's mansion from the outside, surrounded by a gigantic garden and a dollar-signed iron fence.
Scrooge's mansion has appeared in various media, including animation, mainly in DuckTales. Scrooge, along with his nephews, Webby, Betina Beakley, Duckworth and later, Bubba the Cave Duck and his pet triceratops, Tootsie, live in together it. The mansion gets more than its share of damage, due to the fact that some of the adventures even take place in or around it. Scrooge moving from his money bin to the Mansion for the duration of the series has been explained to be that the money bin wouldn't be a good place to raise kids such as Huey, Dewey, and Louie.
In the film's segment, Christmas Impossible, Scrooge hosts a Christmas dinner at his mansion.