Firstly, this world is for Direwolf20_17 which is a Feed The Beast modpack. I wanted to share it but I didn't find a place to upload FTB-worlds, so I did it here. That's why the world type is Vanilla.

http://www.feed-the-beast.com/

Modpack version: 1.0.3.
Minecraft version: 1.7.10.

I made a castle with a Crimson Cult vibe. If you like you can find it by yourself (like the castles in the nether (it's not very far from the spawn)) or read the coordinates further down in the description. You can use the castle as a home or just search it for loot. You might even find a secret or two.
The world will probably be in creative mode. To change to survival mode, type in the chat:
/gamemode 0

Coordinates below:
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Coordinates:
x = 242
y = 63
z = -499