Siem Reap is a cheerful city that embraces travelers like old friends. The ruins, collectively known as the Angkor Archaeological Park, are located about four miles north of the city center. The 150-square-mile complex, which includes the famous Angkor Wat Temple, is Siem Reap’s biggest tourist draw. Phnom Penh is the vibrant bustling capital of Cambodia. Situated at the confluence of three rivers, the mighty Mekong, the Bassac and the great Tonle Sap, what was once considered the 'Gem' of Indochina.