Pillars are excellent examples of Indian architecture. There are 30 pillars found in different parts of India built by king Ashoka. Indian and foreign archaeologists have considered these Ashoka pillars as the best wealth of Indian architecture. These pillars are thin at upper part and thick from bottom. They are heavy and long. Having length about 40 to 50 feet, they are built from one piece of stone. A special type of paste is used on these pillars. The smoothness, polish and brightness of them make people surprised. Their polish shines like glass even today.