Phnom Penh: Visit the Victory Monument, and the National Museum (also called Musee des Beaux-Arts). A French archaeologist and painter, Georges Groslier, designed it in Khmer style in 1917. The museum contains a collection of Khmer art - notably sculptures - throughout the ages. Visit the Royal Palace, built by the French in 1866 on the site of the old town, and the Silver Pagoda. Located within the Royal Palace, the Silver Pagoda is so named because of its floor, which is made up of 5000 silver tiles. The treasures include a solid gold Buddha encrusted and weighing 90kilos and a small 17th century emerald and baccarat crystal Buddha. End your afternoon with the visit of the Wat Phnom Temple.
Drive to the Killing Fields of Choeung Ek (16 km south of Phnom Penh). Between 1975 and 1978 about 17,000 men, women, children and infants (including nine westerners) detained and tortured at S-21 prison were transported to the extermination camp of Choeung Ek. They were often bludgeoned to death to avoid wasting precious bullets. Fragments of human bone and bits of cloth are scattered around the disinterred pits. Over 8000 skulls, arranged by sex and age, are visible behind the clear glass panels of the Memorial Stupa, which was erected in 1988. In Phnom Penh, visit the Notorious Tuol Sleng Museum. In 1975 Tuol Svay Prey High School was taken over by Pol Pot's security forces and turned into a prison known as Security Prison 21 (S-21), soon becoming the largest such center of detention and torture in the country. Detainees who died during torture were buried in mass graves in the prison ground. The museum displays include room after room of these photographs of men, women and children covering the walls from floor to ceiling; virtually all the people pictured were later killed.