To make a castle in Little Alchemy 2, you will need to combine a few elements together. First, you will need to combine the element of air and the element of earth to create dust. Once you have created the dust element, you will then need to combine it with the element of fire to create a brick element. Once you have created the brick element, you will then need to combine it with the element of water to create a mortar element. Finally, combine the mortar element with the brick element to create a castle.
