Phnom Penh is the capital of Cambodia. It is the most populated city in Cambodia with just over 1.5 million people. There are lots of French influences about it. The top two tourist attractions are the Choeung Ek Genocidal Centre and the Tuol Sleng Genocide Museum which reflect on some of Cambodia’s most difficult past. Also, don’t forget to check out the Royal Palace, the Silver Pagoda and Wat Phnom to name a few.