Jain sculptures lie scattered on both sides of the path from the gate, on the walls of the fort. A notable pillar seen here is called the Manastambha. The complete image of each of the 24 tirthankaras depicting the emblem of a bird, flower or animal are seen here. Images of Yaksha and Yakshini are also part of such depictions. Thousands of sculptures are seen embedded in the walls surrounding the complex. The large number of idols lying scattered around the fort area is attributed to the fact that this was the sculptors' workshop. Worship at some of the Jain temples are still held regularly. The most famous of the Jain temples in the fort is the Shantinath temple, which was built before 862 AD. This temple committee oversees the protection of the monuments and work to improve the ambience of the entire place. It has been suggested however, that restoration works be carried out on more scientific terms, following guidelines set by UNESCO's World Heritage Sites. The "Dashavatara Temple" or "Gupta Temple", built in 400-500 AD, is one of the oldest Hindu temple that is still existent until modern era. The temple dedicated to god Vishnu, was first discovered by Captain Charles Strahan. It was given its name by the archaeologist, Cunnigham. Archaeologists have inferred that it is the earliest known Panchayatana temple in North India. It was subsequently renamed by Cunningham as "Dashavatara Mandir" or Dashavatara Temple (because the temple depicts ten incarnations of Vishnu), and also as "Sagar Marh" (meaning: the temple by the well). It was the first North Indian temple with a shikhara or tower, although the shikhara is curtailed and part of it has disappeared. The temple has a high plinth and is set with a basement porch. The Dashavatara temple has a "compelling presence" in spite of its dilapidated condition. Sculpted panels are seen on the terraced basement, with carved figurines of river goddesses Ganga and Yamuna flanking the doorway to the sanctum sanctorum. In addition, on the side walls, three large carved panels of Vaishnava mythology related to Gajendra Moksha, the Nara Narayana Tapasya (austerities), and the Sheshashayi Vishnu (reclining on the serpent), are portrayed. A protective wall made of undressed stone was built around the temple after it was first discovered.