This is probably one of the strangest, yet coolest seed found so far in minecraft. It features a stronghold floating in the ocean, and inside the stronghold is a portal room with a mob spawner.
This is a fairly basic seed, featuring a Jungle Temple, with an NPC village close by. You will spawn in a hole in the ground, which leads to large underground cave system.
You will spawn on what looks to be a beautiful tropical island, surrounded by the ocean, however, it's not really an island as it's connected to the mainland.