What are the weirdest books/stories you've read? By weird I don't necessarily mean the strangest or most fantastic, or even necessarily genre works, but books that create a sense of persistent and extraordinary weirdness, an uncanny feeling that makes the real world seem suddenly unfamiliar and full of possibility.

Some of my picks at random:

The Man Who Was Thursday, by G.K. Chesterton

Pretty much anything by Jorge Luis Borges

The Haunting of Hill House by Shirley Jackson

"Lila the Werewolf" and The Folk of the Air by Peter S. Beagle

The Crying of Lot 49 by Thomas Pynchon

VALIS by Philip K. Dick

Sleeping In Flame by Jonathan Carroll

The Course of the Heart by M. John Harrison

The Windup Bird Chronicle by Haruki Murakami (or anything else)

Ecstasy Club, by Douglas Rushkoff