Tourist Destinations in Cambodia Designated a UNESCO World Heritage site, Angkor is quite simply one of the wonders of the oriental world. This credible temple complex, which lay forgotten beneath the jungle for centuries, dates back to the 12th century and represents one of the world's most remarkable architectural achievements. Spread over several hundred square kilometres, the former capital of the powerful Khmer civilisation, Angkor is truly spectacular with temples, monument and beautiful sculptures a testament to the extraordinary craftsmanship of the Khmers.. While most the main temples are clustered within a 10 kilometre radius, many tourists who visit for 3 days (considered the minimum time) often say they would like to stay for a week. Such is the spendour and the allure of the place.