Asia, the largest continent, is home to the world's largest nations, economies, and populations. China and India are home to over 2.5 billion people combined. Russia spans 16 time zones, and China, Japan, India, Russia, and South Korea are among the 15 largest economies in the world.
Politically, the Korean Peninsula is still technically at war since no formal peace treaty was ever signed. The unsettled Chinese civil war between the communists (PRC) and nationalists (ROC) still causes tensions to rise on the Taiwan Straight.
Thailand and Cambodia sporadically spar over a temple claimed by both nations while India and Pakistan are both nuclear powers and sworn enemies, causing skirmishes in occupied Kashmir, to become potentially devastating. Finally, China has a border dispute with almost every neighbor, and Japan's colonization of Asia during the Second World War is still a sensitive subject. That being said, this massive stretch of land is dynamic, fast paced, diverse, and full of travel potential.