Possible Clues:

• City with the world's most used subway
• Pacific Rim hub
• National Museum of Western Art city
• Put into the bargain about a thousand yen as capital
• Stragglers from city travel west to capital
• Also, travelling over Kentucky, capital's needed
• Its name means ''Eastern capital''
• Bullet-train city
• City where Mary Rand landed gold
• 1964 Olympics site