The Barabar Caves are a group of ancient rock-cut caves located in the Jehanabad district of Bihar, India. Dating back to the 3rd century BCE, they are among the oldest surviving rock-cut caves in India. The caves are primarily associated with the Ajivika sect, an ancient religious group, and feature intricate carvings and inscriptions. The most notable cave is the Lomas Rishi Cave, which has a unique entrance resembling a wooden door. The caves served as monastic retreats and are significant for their architectural style, showcasing early examples of rock-cut architecture in India. They are a UNESCO World Heritage Site and attract historians and tourists alike.