Situated 50 kilometers southwest of hoi an in a lush green valley my son was the cultural and religious center of the once powerful but now extinct champa kingdom it still represents one of the most outstanding hindu temple complexes in south east asia in 1999 it was recognized by unesco as a world heritage site and remains as of today this protected sight is an impressive collection of red brick towers and sanctuaries built with no mortar some of them as old as 1300 years