Within the courtyard are three structures. As is traditional in Shiva temples, the first is a large image of the sacred bull Nandi in front of the central temple. The central temple Nandi Mantapa or Mandapa houses the Lingam. The Nandi Mandapa stands on 16 pillars and is 29.3 m high. The base of the Nandi Mandapa has been carved to suggest that life sized elephants are holding the structure aloft. A living rock bridge connects the Nandi Mandapa to the Shiva temple behind it. The temple itself is a tall pyramidal structure reminiscent of a South Indian Dravidian temple. The shrine complete with pillars, windows, inner and outer rooms, gathering halls, and an enormous lingam at its heart carved from living stone, is carved with niches, pilasters, windows as well as images of deities, mithunas (erotic male and female figures) and other figures. Most of the deities at the left of the entrance are Shaivaite (followers of Shiva) while on the right hand side the deities are Vaishnavaites (followers of Vishnu). There are two Dhvajastambhas (pillars with the flagstaff) in the courtyard. The grand sculpture of Ravana attempting to lift Mount Kailasa, the abode of Lord Shiva, with his full might is a landmark in Indian art. The construction of this cave was a feat of human genius it entailed the removal of 200,000 tonnes of rock, and took 100 years to complete. The temple is a splendid achievement of Rashtrakuta Karnata architecture. This project was started by Krishna I (757773) of the Rashtrakuta dynasty that ruled from Manyakheta in present day Karnataka state. His rule had also spread to southern India, hence this temple was excavated in the prevailing style. Its builders modelled it on the lines of the Virupaksha Temple in Pattadakal. Being a south Indian style temple, it does not have a shikhara common to north Indian temples. The Guide to the Architecture of the Indian Subcontinent, 1996, Takeo Kamiya, Japan Architects Academy and archaeological Survey of India.