One of Phnom Penh's main attractions is the Tuol Sleng Museum of Genocidal Crimes, which was used by the Khmer Rouge as a detention and torture centre in the late 1970s. Formerly a high school, the Khmer Rouge renamed the complex "Security Prison 21" (S-21) and turned it into a prison which housed approximately 17,000 people between 1975 and 1979. The buildings are preserved as they were left when the Khmer Rouge were driven out and today house exhibits, paintings and photographs of many of the victims.
The streets around the museum are beginning to become something of an ethical shopping destination, with social enterprises offering anything from sustainable coconut oil to cute knitted toys produced by marginalised communities. Further south, the Russian market is a good place for shoppers to pick up a bargain, although you may have to barter hard. Avid clothes shoppers can also check out the stores circling the market, many of which stock similar selections for slightly higher prices, but with the convenience of being able to browse in air-conditioning and access changing rooms.