Our flight from Phnom Penh to Siem Reap Cambodia, Narda Biemond and Terrell Neuage. Cambodian airline with flights connecting Bangkok, Siem Reap, Phnom Penh, Ho Chi Minh, Luang Prabang and Danang. is the largest, most populous and capital city of Cambodia. It is also the capital of the Phnom Penh municipality. Once known as the "Pearl of Asia" [1] in the 1920s, Phnom Penh, along with Siem Reap, is a significant global and domestic tourist destination for Cambodia. Phnom Penh is known for its traditional Khmer and French influenced architecture. Phnom Penh is the wealthiest and most populous city in Cambodia. It is also the commercial, political and cultural hub of Cambodia and is home to more than two million of Cambodia's population of almost 15 million.