The Great RiftMinecraft 1.5 - 1.5.2 Seed
Coincidentally spawns you right next to three rifts.
There is a village on top of the rifts.
One of the rifts has an abandoned mineshaft in it.
Also there are naturally spawning pink sheep above the rifts!! Seed = The Great Rift
Seed Code: The Great Rift
X: 67 / Y: 63 / Z: 285