Located on the Barabar Hills, Barbar is an archeological site in Jehanabad District
. It is 18 km north of Gaya
and 41 km from Bodhgaya
Erected during the reign of Ashoka, Barbar Caves date back to the third century. A unique feature is bow-shaped arches at the entrance.
Barabar consists of four caves including Lomas Rishi, Sudama, Karan Chopar (Nigoha-kubha or Banyan Tree Cave) and Vishva Zopari. These caves are stupendous in its architecture, and fall under three categories of caves such as Nagarjuniya caves, Pandava caves and cottage-shaped hut caves.
All these caves are carved out of huge rocks, and two of them are in the form of a plain rectangular outer hall. Besides, each cave carries Buddhist inscriptions and houses temples.