Which the largest city in the world?

Tokyo, Japan - With a population of over 37 million people, Tokyo is the most populous city in the world. It is the capital and largest city of Japan, and is known for its bustling streets, high-tech industries, and rich cultural heritage.

Mumbai, India - With a population of over 21 million people, Mumbai is the second largest city in the world. It is the capital of the Indian state of Maharashtra, and is known for its diverse culture, financial and entertainment industries, and famous landmarks such as the Gateway of India and the Elephanta Caves.

Delhi, India - With a population of over 18 million people, Delhi is the third largest city in the world. It is the capital of India, and is known for its rich history and architecture, including the Red Fort, Qutub Minar, and Jama Masjid.

Shanghai, China - With a population of over 24 million people, Shanghai is the fourth largest city in the world. It is the most populous city in China, and is known for its modern skyline, bustling streets, and vibrant nightlife.

São Paulo, Brazil - With a population of over 21 million people, São Paulo is the fifth largest city in the world. It is the largest city in Brazil, and is known for its diverse culture, financial and entertainment industries, and famous landmarks such as the São Paulo Museum of Art.

Karachi, Pakistan - With a population of over 21 million people, Karachi is the sixth largest city in the world. It is the capital of the Pakistani province of Sindh, and is known for its diverse culture, financial and entertainment industries, and famous landmarks such as the Frere Hall.

Istanbul, Turkey - With a population of over 15 million people, Istanbul is the seventh largest city in the world. It is the largest city in Turkey, and is known for its rich history and architecture, including the Hagia Sophia, Topkapi Palace, and the Blue Mosque.

Moscow, Russia - With a population of over 12 million people, Moscow is the eighth largest city in the world. It is the capital of Russia, and is known for its rich history and architecture, including the Kremlin, Red Square, and St. Basil's Cathedral.

Manila, Philippines - With a population of over 12 million people, Manila is the ninth largest city in the world. It is the capital of the Philippines, and is known for its diverse culture, financial and entertainment industries, and famous landmarks such as the Intramuros and the Rizal Park.

Tianjin, China - With a population of over 15 million people, Tianjin is the tenth largest city in the world. It is a coastal city in northeastern China, and is known for its modern skyline, bustling streets, and vibrant nightlife.

The top 10 largest cities in the world are Tokyo, Japan; Mumbai, India; Delhi, India; Shanghai, China; São Paulo, Brazil; Karachi, Pakistan; Istanbul, Turkey; Moscow, Russia; Manila, Philippines; and Tianjin, China. These cities are known for their large populations, diverse cultures, financial and entertainment industries, and famous landmarks. Tokyo is the most populous city in the world, and is known for its bustling streets and high-tech industries. Mumbai is known for its diverse culture and famous landmarks such as the Gateway of India. Delhi is known for its rich history and architecture, including the Red Fort and Qutub Minar. Shanghai is known for its modern skyline and bustling streets. São Paulo is known for its diverse culture and famous landmarks such as the São Paulo Museum of Art. Karachi is known for its diverse culture and famous landmarks such as the Frere Hall. Istanbul is known for its rich history and architecture, including the Hagia Sophia and Topkapi Palace. Moscow is known for its rich history and architecture, including the Kremlin and Red Square. Manila is known for its diverse culture, financial and entertainment industries, and famous landmarks such as the Intramuros and Rizal Park. Tianjin is a coastal city in northeastern China and known for its modern skyline, bustling streets and vibrant nightlife.