Well, Neil Gaiman has some great works in this genre. 'Coraline' is one. It's a story about a girl who discovers an alternate version of her home that is much more sinister. From Shirley Jackson again, 'We Have Always Lived in the Castle' is a brilliant piece of weird fiction. The isolation and the strange family dynamics are really captivating. And from Jorge Luis Borges, 'The Library of Babel' is a mind - boggling story with its infinite library concept.
Sure. From H.P. Lovecraft, 'At the Mountains of Madness' is excellent. It takes readers on a journey to Antarctica where there are ancient and terrifying secrets. As for Angela Carter, 'The Bloody Chamber' has a collection of stories with a very strange and often feminist take on fairy tales. And from Clive Barker, 'The Hellbound Heart' is a great weird fiction story that delved into the dark and grotesque world of the Cenobites.