The four-storeyed temple complex at Undavalli is actually a magnificent cave structure! Built by the Vishwakudina dynasty in around 420 - 620 AD, it's quite a work of engineering. It's also a beautiful symbol of diversity, with different faiths all in the same space. Initially, it was used as a Buddhist monastery, and later the caves were lived in by Jain monks. Finally, the complex acquired a Hindu temple look under the reign of the Vishwakudina dynasty.