Blocks are the primary object found in the world that The Player interacts with. They act as the ground, walls, and other structures found throughout the game world in the Overworld, Nether, The End, Twilight Forest, and Pocket Dimensions.
All blocks in the game world are measured in meters and each block is 1m3, or 1 meter by 1 meter by 1 meter. This can be used as a measuring tool for determining scaled structures from life into the game. For those not used to using meters, a meter is approximately 3.2 feet.