Phnom Penh, the capital city of Cambodia lies at the confluence of the Mekong, Sap and Bassac rivers. Phnom Penh was regarded by many as the most beautiful of all the French-built cities in Indochina and so was formerly called the pearl of Indochina. Its rich historical past can be traced to some Khmer and French influence evidences such as many ornate Khmer–style temples and some grand colonial buildings.