Angkor
In the early days of Angkor, the worship of Vishnu was secondary to that of Shiva. The relationship seems to have changed with the construction of Angkor Wat by King Suryavarman II as his personal mausoleum at the beginning of the 12th century. The central religious image of Angkor Wat was an image of Vishnu, and an inscription identifies Suryavarman as "Paramavishnuloka," or "he who enters the heavenly world of Vishnu." Religious syncretism, however, remained thoroughgoing in Khmer society: the state religion of Shaivism was not necessarily abrogated by Suryavarman's turn to Vishnu, and the temple may well have housed a royal lingam. Furthermore, the turn to Vaishnavism did not abrogate the royal personality cult of Angkor. by which the reigning king was identified with the deity. According to Angkor scholar Georges Coedès, "Angkor Wat is, if you like, a vaishnavite sanctuary, but the Vishnu venerated there was not the ancient Hindu deity nor even one of the deity's traditional incarnations, but the king Suryavarman II posthumously identified with Vishnu, consubstantial with him, residing in a mausoleum decorated with the graceful figures of apsaras just like Vishnu in his celestial palace." Suryavarman proclaimed his identity with Vishnu, just as his predecessors had claimed consubstantiation with Shiva.
Angkor Wat
In 1992, following an appeal for help by Norodom Sihanouk, Angkor Wat was listed in UNESCO's World Heritage in Danger (later removed in 2004) and World Heritage Site together with an appeal by UNESCO to the international community to save Angkor. Zoning of the area was set up to protect the Angkor site in 1994, APSARA was established in 1995 to protect and manage the area, and a law to protect Cambodian heritage was passed in 1996. A number of countries such as France, Japan and China are currently involved in various Angkor Wat conservation projects. The German Apsara Conservation Project (GACP) is working to protect the devatas, and other bas-reliefs which decorate the temple, from damage. The organisation's survey found that around 20% of the devatas were in very poor condition, mainly because of natural erosion and deterioration of the stone but in part also due to earlier restoration efforts. Other work involves the repair of collapsed sections of the structure, and prevention of further collapse: the west facade of the upper level, for example, has been buttressed by scaffolding since 2002, while a Japanese team completed restoration of the north library of the outer enclosure in 2005. World Monuments Fund began conservation work on the Churning of the Sea of Milk Gallery in 2008 after several years of studies on its condition. The project restored the traditional Khmer roofing system and removed cement used in earlier restoration attempts that had resulted in salts entering the structure behind the bas-relief, discoloring and damaging the sculpted surfaces. The main phase of work ended in 2012, with the final component being the installation of finials on the roof of the gallery in 2013.