Londonvs Moscowvs New York

Population density shows how cramped or spread out inhabitants are. Cities or countries with high population densities can be considered overpopulated, but this becomes an issue if the infrastructure is underdeveloped. Source: Wikipedia, 2020.

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Cities or countries with younger population have usually better development perspectives. Young societies are more dynamic and creative. Source: Wikipedia, 2020.

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Populous cities or countries usually offer better employment opportunities because of their large economies. Big cities attract companies and business investment, and are usually important cultural centers and research hubs. Source: Wikipedia, 2020.

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The average population growth rate reflects the annual increase or decrease in population. Currently, the world’s population is growing at a rate of approximately 1.07% per year. The higher the growth, the more dynamic society feels. Source: Wikipedia, 2020.

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The average price of a single-bedroom apartment located in the city center shows how much of your salary would be allocated in rent expenses, and is an indicator of the cost of living of the city. Source: numbeo.com, 2020.

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Public health care is more affordable for an average citizen and usually guaranteed for everyone. Source: city's official website, 2020.

Source: Wikipedia, 2020; city's official stats, 2020.

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The Gross Domestic Product (GDP) reflects the value and productivity of an economy. It measures the market value of all the final goods and services produced annually. To reflect the differences in the cost of living and inflation rates, we show the GDP at purchasing power parity (PPP). Sources: Wikipedia, CIA World Factbook, 2020.

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The Gini coefficient is a measure of dispersion, in this case used to show the variation in income. A Gini coefficient of zero expresses perfect equality. A Gini coefficient of one expresses maximal inequality. Lower income inequalities indicate a more equal distribution of wealth and better opportunities for the average citizen. Source: Wikipedia, 2020.

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Low unemployment rate indicates better career opportunities and economic growth. Source: Wikipedia, 2020; city's official stats, 2020.

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Source: Wikipedia, 2020; WMO, 2020.

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Source: Wikipedia, 2020; WMO, 2020.

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Humidity is the amount of water vapor in the air. High relative humidity reduces the effectiveness of sweating in cooling the body by reducing the rate of evaporation of moisture from the skin. In general, higher humidity makes climate harder to stand for people. Source: Wikipedia, 2020; WMO, 2020.

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Source: Wikipedia, 2020; city's official website, 2020.

Source: Wikipedia, 2020; city's official website, 2020.

There are mountains at a distance of maximum 100 kilometers (62 miles) from the city. Mountains are considered to have an elevation of at least 1,000 m (3,300 ft). Source: Wikipedia, 2020; city's official website, 2020.

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Source: Wikipedia, 2020; city's official website, 2020.

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The World Heritage List includes 962 properties forming part of the cultural and natural heritage which the World Heritage Committee considers as having outstanding universal value. Source: UNESCO, 2020.

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With more large sports facilities (20,000+ seats), a city is able to organize more important sporting events. Source: worldstadiums.com, 2020.

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It indicates that the city is an important religious center. Source: Wikipedia, 2020.

Having a well-known soccer team playing in a country's first division demonstrates the city's interest in sports and attracts visitors to matches.

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Every year the city is host to a festival included in the list of the top 50 World Festivals. A well-known festival shows a better cultural and entertainment agenda and attracts a bigger number of tourists. Source: Escapenormal.com, 2020.

Cost of the monthly public transport ticket indicates affordability of public transportation for an average inhabitant. Source: Wikipedia, 2020; city's public transport website, 2020.

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A cheaper single ticket will allow you to move through the city for less money. Whether you are a visitor or a resident, it will help your economy. Source: Official city's public transport website, 2020.

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A bike-sharing system makes a city more eco-friendly, shows the city’s pro cycling attitude, and provides new touristic opportunities. Source: Wikipedia, 2020.

The presence and number of airports shows how good is connection of city with different international destinations and its international accessibility. Source: Wikipedia, 2020.

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The subway rate or number of kilometers of subway per number of inhabitants indicates how well developed the subway network is. Source: Wikipedia, 2020.

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The Commuter Pain Index is comprised of 10 issues: 1) commuting time, 2) time stuck in traffic, agreement that: 3) price of gas is already too high, 4) traffic has gotten worse, 5) start-­‐stop traffic is a problem, 6) driving causes stress, 7) driving causes anger, 8) traffic affects work, 9) traffic so bad driving stopped, and 10) decided not to make trip due to traffic. Source: IBM, 2020.

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It can be nice to live in big cities or countries, as a larger space may offer more options for residents and visitors.

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In general, cities with possibility of drinking alcohol in public places have more thriving nightlife. It's easier to organize parties in public places. Source: Wikipedia, 2020; city's official website, 2020.

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The Global Cities Index is unique in that it measures global engagement of cities across five dimensions: business activity, human capital, information exchange, cultural experience and political engagement. Source: ATKearney, 2020.

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Number of billionaires can indicate if the city has significant agglomerations of personal wealth. Source: Forbes, 2020.

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Sister cities or twin towns are a form of law agreement made between towns, cities or regions in politically distinct areas to promote cultural and commercial ties. It might mean more possibilities outside your city, a greater multiculturalism and a wider range of options.

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Cities with stock exchanges are usually important financial centers influencing international or national’s financial markets. Source: Wikipedia, 2020.