The Pallava monuments at Mahabalipuram are known the world over for its style of temple architecture.The monuments are mostly rock-cut and monolithic, and constitute the early stages of Dravidian architecture wherein Buddhist elements of design are prominently visible. They are constituted by cave temples, monolithic rathas (chariots), sculpted reliefs and structural temples. The pillars are of the Dravidian order. The sculptures are excellent examples of Pallava art. It is believed by some that this area served as a school for young sculptors. The different sculptures, some half finished, may have been examples of different styles of architecture, probably demonstrated by instructors and practiced on by young students. This can be seen in the Pancha Rathas where each Ratha is sculpted in a different style. These five Rathas were all carved out of a single piece of granite.