What is the capital city of Japan?

Tokyo is the capital city of Japan, serving as the political, economic, and cultural center of the country. It is one of the most populous cities in the world and is known for its significant impact on various aspects of global culture, technology, and finance. Tokyo became the national capital in 1868, when Emperor Meiji moved the imperial seat from Kyoto to the city, marking the start of a new era for Japan.

The other cities listed are capitals of different countries: Seoul is the capital of South Korea, Beijing is the capital of China, and Bangkok is the capital of Thailand. Each of these cities has its unique attributes and importance within its own nation, but they do not hold the status of being the capital of Japan.