A spooky house with 3 floors and an attic! Do as you like, build some redstone contraption, make it into a haunted house ride of just use it as decoration, it will look awesome!
This download includes the house, the basement, docks and the maze behind the house. There's a hidden redstone door to get into the house and a hidden passage to the left of the house. The house is not decorated, I'll leave that up to you!
House only download: http://www.minecraft-schematics.com/schematic/1758/
House + all surroundings download: http://www.minecraft-schematics.com/schematic/1760/