a few days back I was watching GameChap's mods and saw their map and I instantly thought to myself "I want their map" so I nosed around on the internet and finally found the seed for the world they play in and started making a replica of their house!
How to install maps to Minecraft:
Click on start orb or bar,
then type in run (for xp),
then click on .minecraft,
then click on maps,
then drag n drop map folder into there!