東亞, or East Asia, is a region in Asia that includes countries such as China, Japan, South Korea, North Korea, Mongolia, and Taiwan. This area is known for its rich history, diverse cultures, and significant economic development. Major cities like Beijing, Tokyo, and Seoul are important cultural and financial centers. The region is characterized by a variety of landscapes, from mountains and plateaus to coastal areas. East Asia has a significant influence on global trade and technology, with countries like China being major players in manufacturing and innovation. The cultural heritage includes traditional practices, languages, and cuisines that vary across the countries.