Chicago, officially the City of Chicago, is the most populous city in the U.S. state of Illinois, and the third most populous city in the United States, following New York City and Los Angeles.

Seattle is a seaport city on the West Coast of the United States. It is the seat of King County, Washington. With a 2019 population of 753,675, it is the largest city in both the state of Washington and the Pacific Northwest region of North America.

Paris is located in northern central France, in a north-bending arc of the river Seine whose crest includes two islands, the Île Saint-Louis and the larger Île de la Cité, which form the oldest part of the city.

New York, often called New York City to distinguish it from New York State, or NYC for short, is the most populous city in the United States. With a 2020 population of 8,804,190 distributed over 302.6 square miles (784 km2),[6] New York City is also the most densely populated major city in the United States.

Los Angeles, officially the City of Los Angeles and often abbreviated as L.A., is the largest city in California. Los Angeles lies in a basin in Southern California, adjacent to the Pacific Ocean, with mountains as high as 10,000 feet (3,000 m), and deserts.