The Bhaja caves are a group of rock-cut Buddhist caves dating back to around the 2nd century. They have beautiful ornate features like sculptures with intricate headdresses, garlands and jewellery. There's also a splendid Chaityagriha hall! The beams you'll find in the hall are in fact among some of the oldest surviving woodwork in India. They are the same ones the monks installed about 2200 years ago, with only minor restoration work made. There are viharas (living quarters) and water cisterns too, as you'll see in Mumbai's Kanheri caves.