China, officially known as the People's Republic of China, is the most populous country in the world with over 1.4 billion inhabitants.

Laos, located in the heart of the Indochinese peninsula, is known for its mountainous terrain, scenic rivers and an abundance of wildlife.

Bangladesh, officially known as the People's Republic of Bangladesh is located in South Asia. It's bordered by India on all sides except for a small border with Myanmar.

North Korea, officially known as the Democratic People's Republic of Korea (DPRK), is a country in East Asia constituting the northern part of the Korean Peninsula.

Algeria is the largest country in Africa and the 10th largest in the world.