Wide angle shot of ruins of Old Nalanda University historic Indian architecture

patna tree education india asian holiday university learning tourism buddhism unesco buddhist buddha religious brick culture archeology spiritual tourist infrastructure archaeological ancient bihar landmark history location monastic heritage historical historic scholastic awakening institution rajgir bihar courtyard ruins buddhism architecture nalanda tourism excavated ruins at nalanda ruins of nalanda damage buddhism destination destination first university famous excavated ruins unesco world heritage site monastery bihar tourism nalanda bihar