Reykjavik, the capital city of Iceland, is the world’s northernmost capital city. The world’s southernmost capital city is Wellington, New Zealand.

Istanbul in Turkey is the largest city in the world to lie on two continents: It is split between Europe and Asia. Others include Oral in Kazakhstan, Port Said in Egypt and Colon in Panama.

New York is the most populous city in the United States with approximately 8 million people. It is not the most populous in North America nor the Americas as a whole. It shifts to fourth place overall in the Americas by Sao Paulo, Lima in Peru and Mexico City.

Delhi and the Indian capital of New Delhi are actually the same city, as New Delhi is a district of the larger city of Delhi.

Before Tokyo, the capital of Japan was Kyoto. The cities’ names are anagrams of each other.