Phnom Penh is Cambodia's capital. Phnom Penh literally means "Penh's Hill" ("Phnom" is the Khmer word for "hill") Built on a hill near the Mekong River, Phnom Penh is so named because it was developed from a small monastery which had been built there in 1372 by a Khmer woman named Penh.

Cambodia flag is the only national flag to incorporate an actual building into its design

Tonlé Sap river connects the Tonlé Sap lake to the Mekong river. During the monsoon season, heavy water flowing down the Mekong river forces the Tonle Sap river to reverse its flow, filling the Tonlé Sap lake.

Cambodian New Year (Choul Chnam Thmey in the Khmer language, literally "Enter New Year") is the name of the Cambodian holiday that celebrates the New Year. The holiday lasts for three days beginning on New Year's Day, which usually falls on April 13th or 14th, which is the end of the harvesting season, when farmers enjoy the fruits of their labor before the rainy season begins. Cambodians use Buddhist Era to count the year based on the Buddhist calendar. For 2016, it is 2560 BE (Buddhist Era)

Theravada Buddhism is the official religion of Cambodia. It is practiced by around 95% of the Cambodian population.

Hun Sen, the head of government of Cambodia, is the longest serving leader in South East Asia and has ruled Cambodia for over 25 years.

Top 10 cities of Cambodia (2015 est.)

Phnom Penh: 2.4 million

Ta Khmau: 200,000

Serei Saophoan: 190,000

Battambang: 190,000

Siem Reap: 185,000

Kampong Cham: 125,000

Sihanoukville: 100,000

Chbar Mon: 60,000

Kampot: 55,000

Kampong Chhnang: 50,000