Preserving the Angkor Temples in Cambodia
6 June 2012 Last updated at 06:40 BST
Cambodia is holding talks with international experts to discuss the best way of safeguarding and preserving the Angkor Temples.
Almost 3-million tourists visited the temples last year, raising concern that the large Hindu temple complex is at risk of environmental damage.
The BBC's Guy Delauney explains the problems large visitor numbers are causing.