100 major cities of the world
Tap any tile for population, location, founding date and key facts.
World map
Real OpenStreetMap with all 100 cities pinned. Click a pin to see details.
Compare two cities
Pick any two cities to see how they stack up — population, latitude, country, founding year.
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City of the Day
For teachers
Printable worksheet, answer key, teaching tips and standards alignment.
Teaching tips
Standards alignment
Discussion prompts
- Why do most of the world's largest cities sit on coastlines or major rivers?
- Compare a megacity in the Global North (Tokyo, NYC) with one in the Global South (Lagos, Dhaka). What does each tell us about economic development, infrastructure, and population growth?
- What is the difference between a city, a metropolitan area, and an urban agglomeration? Why do different sources report different "city" populations?
- Pick one capital city. Is it the most populous city of its country? If not, why might a smaller city be the capital?