London

London is a leading global city in the arts, commerce, education, entertainment, fashion, finance, healthcare, media, professional services, research and development, tourism and transportation.London, the fourth fastest-growing city, is 26 out of 300 major cities for economic performance. It is one of the largest financial centres and has either the fifth or sixth largest metropolitan area GDP. It is the most-visited city as measured by international arrivals and has the largest city airport system measured by passenger traffic.It is the leading investment  more international retailersand ultra high-net-worth individuals than any other city. London's universities form the largest concentration of higher education institutes in Europe. In 2012, London became the first city to have hostethree modern Summer Olympic Games.^[42]

London has a diverse range of people and cultures, and more than 300 languages are spoken in the region Its estimated mid-2016 municipal population (corresponding to Greater London) was 8,787,892,^[4] the most populous of any city in the European Unionand accounting for 13.4% of the UK population. London's urban area is the second most populous in the EU, after Paris, with 9,787,426 inhabitants at the 2011 census.^[46] The city's metropolitan area is the most populous in the EU with 14,040,163 inhabitants in 2016,^{[note 4][3]} while the Greater London Authority states the population of the city-region as 22.7 million

France

France is the largest country in the European Union and the second largest in Europe. It has been one of the world's foremost powers for many centuries. During the 17th and 18th centuries, France colonized much of North America; during the 19th and early 20th centuries, France built one of the largest colonial empires of the time, including large portions of North, West and Central Africa, Southeast Asia, and many Pacific islands. France is a developed country and possesses the fifth largest economy^[11] in the world, according to nominal GDP figures. It is the most visited country in the world, receiving 82 million foreign tourists annually.^[12] France is one of the founding members of the European Union, and has the largest land area of all members. It is also a founding member of the United Nations, and a member of the Francophonie, the G8, NATO, and the Latin Union. It is one of the five permanent members of the United Nations Security Council and owns the largest number of nuclear weapons with active warheads and nuclear power plants in the European 
Union

Canada

I want spak about Calgary Canada although many large cities can be dirty a recent survey found Calgary to be one of the cleanest cities in the world with the lowest air pollution and the cleanest rubbish free environment Calgary is the second largest city in Canada but only has a population of around 8ooooo people it has an area of 721km Calgary is located on the bank of the bow River 1o48m above sea level and 250km north of the border between Canada and the USA you can get a great view of the city from the Calgary tower which is 191m high Calgary was founded in the 19th century although it is a young city it was a famous enough to hold the Olympic winter games in 1988 every July the city gets really busy with the biggest cowboy show in the world when people ride horses and cows and wear white cowboy hats colorful shirts and jeans

Mexico

I want spak about Mexico city its the capital of Mexico which is located in Central America Mexico city has a population of 2o million people and is built on the ruin of a much older city colled tenochtitlan as you can imagine with all these people it can be busy and noisy and there is a lot of pollution and dirt the traffic can be terrible at times and causes smog which is a cloud of smoke that can sometimes make it difficult to breathe thats why Mexico city is known as the most polluted city in the world although the pollution is bad there are many good things about Mexico city for example there is a wonderful underground train or subway which can get you to many interesting places I enjoy going to the museo del Nino or the children's museum which has lots of things you can play with then there is the castle on grasshopper hill that used to be the home of emperor Maximilian you can always escape city life by going to walk and play in although in the summer it is too hot however the cooler winters are very nice

Tokyo

I want spak about Tokyo is one of the greatest cities in the world it is the world's largest city with a population of 33 million people who live in an area of about 580km Tokyo is collected metropolis because it is so big it is made up of 23 smaller cities can be difficult but it is quite easy to get around Tokyo on the subway train buses

Reykjavik

I want spak about Reykjavik

which is the capital city of Iceland and the most northerly capital city in the world it has a population of 178ooo people Reykjavik is a cold place to live with winter temperatures of 1c and summer temperatures of around 11c so if you came and visit remember to boring