The Fortress of Solitude is a pre-built world with a bit of a puzzle to it and a little bit of a story.
This map will give you a pre-built base to begin your Minecraft adventure.
This map has a bit of a story to go along with the world. However, it will not change the game play for you much as you will still need to play through the mods in the "All the Mods" mod pack.
This map is also a bit of a puzzle map in that you start with almost nothing and have to find a way out to begin really playing
This map should work with any world but it was designed with the afore mentioned mod in mind.
Enjoy the map, worked on it awhile to make it fun so I hope you all enjoy.