Yamanakako Resort Mansion (山中湖リゾートマンション) was never finished. It’s now a huge block of concrete soaking in a thick layer of silence, standing in a place of no interest, except for its view on Mount Fuji.
All the rooms (more than 100?!) look exactly the same, making the place appear like a maze. It could be a paradise for street artists though: I’d love to see the whole structure covered with beautiful graffiti! And that’s probably the most idealistic future we can hope for this place.