On the eve of the 30th anniversary of the World Heritage Convention, Matsuura explains his reform of Unesco and the return of the US to membership after nearly 20 years

Ancient language, song, dance and performance cannot be kept alive simply in a showcase or tended by curators. This list was produced to highlight their fragility

An ongoing effort to restore the ancient site has international teams working altogether but using radically different approaches, resulting in unexpected order

After many set backs a new building is finally in the works, as well as plans for a modern solution to the dispersal of Egypt's treasures

Conservation projects are urgently needed, however hope is found underneath the Phnom Penh museum