Ultra Amplified Survival World is awesome survival map, where you will get unbelievable landscapes for survival in Minecraft Pocket Edition. You will see a lot of biomes, many beautiful structures and right place for survive.
snow biomes are really cool!
If you like houses on the trees is your right map! It looks awesome!
Maybe do you want under the earth? Look at this screenshot below
If you like nature, you can take a look on this kind of biome ( foto )
Attention! The map file is about 100 mb
Download this map for Minecraft Pocket Edition 1.4/1.5