Today you’ll head out on a city tour that introduces you to the sights of Phnom Penh – a city that lies near the confluence of the Mekong and Tonle Sap rivers. The private quarters of the Royal Palace are home to King Sihamoni and are closed to the public. You will, however, be able to visit the Silver Pagoda that lies in the palace complex, which is the most sacred temple in the country. Then, visit the Tuol Sleng Genocide Museum (S21) and the Killing Fields of Choeung Ek, which tell the story of the tragic legacy of the Khmer Rouge. Tuol Sleng is a former school that served as a Khmer Rouge torture centre, and it’s estimated that more than 20,000 people were held and tortured here. The Killing Fields of Choeung Ek are home to a stupa made up of some 8000 human skulls. This was the execution ground for the torture victims of Tuol Sleng, and standing in this peaceful setting, it's almost unthinkable to imagine that nearly 9000 corpses have been exhumed from the area. After, maybe visit Wat Phnom – the temple that gave rise to the foundation of the city in the 15th century.