Visit to the Royal Palace, built during the French colonial period. The same complex houses the Silver Pagoda, named for the over 5,000 heavy silver tiles that cover its floors. Its original name is Wat Prakeo, meaning Temple of the Emerald Buddha. In this temple you will view a collection of Buddhas in gold, silver, crystal, and bronze. Also stop to visit the National Museum, which was built in traditional Khmer style. It houses the world's foremost collection of ancient Khmer artistic, archaeological, and religious artifacts from the 4th to the 13th centuries.
In the afternoon, take a look into the country’s tragic recent history with a tour of Tuol Sleng Prison (S-21) and the Killing Fields at Choeng Ek, sobering reminders of the evils of the Khmer Rouge regime. Although not a joyful tour, visiting these monuments unlocks keys to understanding the development of this still developing country.
Late afternoon, head to the riverside area of Phnom Penh, a pleasant French style promenade that is great for people viewing.