Start your day with the temple of the city's namesake, Wat Phnom. Founded in 1373, the pagoda was built to house Buddhist relics washed ashore by the river.
Drive to the Killing Fields of Choeung Ek. 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.
You'll then continue to 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). It soon became the largest such center of detention and torture in the country.
Visit the Royal Palace built in 1866 by King Norodom. See the different structures of this pagoda-style compound and stroll in its beautiful garden. Visit the Silver Pagoda so named because of its floor that is comprised of 5,000 silver tiles.
Visit the National Museum. Built in 1917 it is an exceptional example of traditional architecture and is exclusively devoted to preserving and displaying Khmer art and sculptures. Hundreds of pieces are housed here including both pre-and post-Angkorian pieces.
Overnight in Phnom Penh