Definition: The term "castellated" is a term used in architecture and landscape design. It refers to the process of creating a curved or arch-like shape by laying stone slabs or stones on top of a foundation, typically with a natural slope. In English-speaking cultures, this type of construction can be seen in the roofs of buildings, bridges, and other structures that have been designed for their unique architectural characteristics. The term "castellated" is often used to describe the artistic effect produced by