You shouldn't play Vanilla Minecraft without This ! This modpack makes Minecraft look like as in the Trailer and improves small things to make the game less boring.
Big mountains with a beautiful view
Better mineshaft structures with complex architecture
All the mobs from the mob votes that weren't added
High Render Distance with Bobby Mod
New structures and biomes in the End
Better Pyramids with Oasis, sandstorms. There are also Pyramids and wells in the Badlands biome
More height variations in the Nether
Trailer like animations that adds life to the game.
New village in the Jungle, Cherry Grove and Mangrove Swamp
A Beekeeper's house near some beautiful cherry trees
A new structure in the Nether.
A new structure in the end
Ruins are significantly with better loots and mobs from the nether. Portal ruins in the nether are also modified