Most Biomes Flat Terrain

Great for building structures on.
The overworld checkerboard generation contains plains, old growth pine taiga, old growth spruce taiga, taiga, forest, dark forest, jungle, sparse jungle, birch forest, windswept forest, flower forest, unflower plains, meadow, meadow, savanna, swamp, swamp, bamboo jungle, mushroom fields, plains, wooded badlands, badlands, eroded badlands, desert, desert, desert, desert, stony peaks, stony peaks, the void, the void, the void, jagged peaks, frozen peaks, snowy slopes, grove, snowy taiga, snowy plains, snowy beach, ice spikes, frozen ocean, cold ocean, deep frozen ocean, deep cold ocean, deep lukewarm ocean, deep ocean, ocean, lukewarm ocean, beach, beach & plains.
The nether has the void & nether biomes & the end has end biomes as well.