Top 10: Largest Cities in the World by Population

1. Tokyo (Japan)

EstimatePopulation: 34,600,000 

Tokyo, Japan’s bustling capital, mixes the ultramodern and the traditional, from neon-lit skyscrapers and anime shops to cherry trees and temples. The opulent Meiji Shinto Shrine is known for its towering gate and surrounding forests. The Imperial Palace sits amid sprawling public gardens. The city is famed for its vibrant food scene, and its Shibuya and Harajuku districts are the heart of its trendy teen fashion scene.

2. Guangzhou (China)

Estimate Population: 26,300,000

Guangzhou is a sprawling port city northwest of Hong Kong on the Pearl River. Considered the birthplace of dim sum, it has a thriving food scene. Its markets specialize in wares ranging from eyeglasses to electronics. The sandbar Shamian Island, across a canal from Guangzhou, has leafy streets and grand mansions that are a legacy from its time as a foreign concession.

3. Jakarta (Indonesia)

Estimate Population: 25.8 million

Jakarta, Indonesia's huge capital, sits on the northwest coast of the island of Java. A historic mix of cultures – Javanese, Malay, Chinese, Arab, Indian and European – has influenced its architecture, language and cuisine. The old town, Kota Tua, is home to Dutch colonial buildings, Glodok (Jakarta’s Chinatown) and the old port of Sunda Kelapa, where traditional wooden schooners dock.

4. Shanghai (China)

Estimate Population: 25.8 million

Enormous Shanghai, on China’s central coast, is the country's biggest city and a global financial hub. Its heart is the Bund, a famed waterfront promenade lined with colonial-era buildings. Across the Huangpu River rises Pudong’s futuristic skyline, including 632m Shanghai Tower and the Oriental Pearl TV Tower, with distinctive pink spheres. Sprawling Yuyuan Garden has traditional pavilions, towers and ponds.

5. Seoul (Korea)

Estimate Population: 25.6 million

Seoul, the capital of South Korea, is a sprawling metropolis where hyper-modern skyscrapers, high-tech subways and pop culture meet Buddhist temples, palaces and street markets. Notable attractions include futuristic Dongdaemun Design Plaza, a convention hall with curving architecture and a rooftop park; Gyeongbokgung Palace, which once had more than 7,000 rooms; and Jogyesa Temple, site of centuries-old locust and pine trees.

6. Mexico City (Mexio)

Estimate Population: 23,500,000

Mexico City is the densely populated, high-altitude capital of Mexico. It's known for its Templo Mayor (a 13th-century Aztec temple), the baroque Catedral Metropolitana of the Spanish conquistadors and the Palacio Nacional, which houses historic murals by Diego Rivera. All of this resides in and around the Plaza de la Constitución, the massive main square also known as the Zócalo.

7. Delhi (India)

Estimate Population: 23,500,000

Delhi, India’s capital territory, is a massive metropolitan area in the country’s north. In Old Delhi, a neighborhood dating to the 1600s, stands the imposing Mughal-era Red Fort, a symbol of India, and the sprawling Jama Masjid mosque, whose courtyard accommodates 25,000. Nearby is Chandni Chowk, a vibrant bazaar filled with food carts, sweets shops and spice stalls.

8. Karachi (Pakistan)

Estimate Population: 22.1 million

Karachi is the capital of the province of Sindh, as well as the largest and most populous metropolitan city of Pakistan. It is main port city of the country. Karachi is world's 6th largest metropolitan area. Karachi is first capital of Pakistan. It also Called City of Light.

9. Manila (Philippines)

Estimate Population: 21,800,000

Manila, the capital of the Philippines, is a densely populated bayside city on the island of Luzon, which mixes Spanish colonial architecture with modern skyscrapers. Intramuros, a walled city in colonial times, is the heart of Old Manila. It’s home to the baroque 16th-century San Agustin Church as well as Fort Santiago, a storied citadel and military prison.

10. New York (United States)

Estimate Population: 21,500,000

Home to the Empire State Building, Times Square, Statue of Liberty and other iconic sites, New York City is a fast-paced, globally influential center of art, culture, fashion and finance. The city’s 5 boroughs sit where the Hudson River meets the Atlantic Ocean, with the island borough of Manhattan at the “Big Apple's" core.