Maharashtra is famous for its cave architecture, with ancient Buddhist caves dating back to the 2nd century BC. Later Hindu cave temples, most famously at Ellora and Ajanta, are similar to other temples of that era in design but are carved from the top down out of solid but soft rock. The mention of Maharashtra cave architecture brings the caves of Ajanta and Ellora into limelight. Some of India's oldest wall paintings can be traced here. The sculptures of the time are stiff and unmoving but Maharashtra 's famous rock-cut caves have several distinct design elements. The Buddhist caves; particularly the older ones are either temples ('Chaityas') or monasteries ('Viharas'). Chaityas are usually deep and narrow with a 'Stupa' at the end of the cave.