Phnom Penh, Tuol Sleng

The Independence Monument (Vimean Ekareach) was built in 1958 in the centre of the city. It is in the form of a lotus-shaped stupa, of the style seen at the great Khmer temple at Angkor Wat and other Khmer historical sites. The Independence Monument was designed by the influential Cambodian modern architect Vann Molyvann.
The Tuol Sleng is the Genocide Museum of Cambodia. The site is a former high school which was used as the notorious Security Prison 21 (S-21) by the Khmer Rouge communist regime from its rise to power in 1975 to its fall in 1979. Tuol Sleng means "Hill of the Poisonous Trees" or "Strychnine Hill".