Karla Caves are a series of beautifully cut rock constructions built around the 2nd century BC to 1st century AD. Built along an ancient trade route, they were meant to be accessible to pilgrims but also far enough to keep its serenity intact. While they're not the largest or most elaborate of Buddhist excavations, they have one of the grandest chaityagrihas (prayer halls) in the country. It's made of teak wood and features ornate arches and intricate sculptures.