Railway= over 7000 blocks long, including a loop that goes around the entire worlds edge.
A square base for a massive structure, 100x100 blocks, and it's double layered, but the walls
And roof isnt done as it has taken forever.
Pyramid
Stadium with combined castle.
Theme park with three rollercoasters, including an extreme one that's cool to ride.
2 water slides, one extremely fast boat and other nonboat water slide.
Lots of houses/buildings some decent size.
Insane enterance to a mine that is massive, I haven't seen a larger mine on xbox minecraft. Also with railway so you can get to the end of it fast as walking would take forever.
2 hotels one of them is extremely large and modern, other is old and medium sized.
Massive structure I can't describe, but it is pretty cool.
3story sugarcane farm, semi automatic.
Mob grinder.
Large area cleared out so it's flat, you could make pixel art on it.
A mini game inside the pyramid called pharaohs escape.
The seed is called MODDED which has awesome scenery if you look on YouTube.
A chest room full of hacked items, such as ice or bedrock.
Plus much more!

Does it sound like a good world? Or average? would any1 want it?