Sometimes known as “The Big Apple” or “the City That Never Sleeps”, New York is both the most populous city in the USA and a leading center of business, commerce, finance and media. The city is often referred to as “New York City”, in order to distinguish it from the state it is in. The city is part of a large metropolitan（大都市的）area, and the combined city population exceeds 18.7 million.

New York City is made up of five boroughs（行政区）and hence another nickname of the city is “The Five Boroughs”. The five boroughs are: The Bronx, Brooklyn, Manhattan, Queens and Staten Island.

There are many famous buildings and sights in New York, especially in Manhattan. These include the Empire State Building, the Flatiron Building and the United Nations Building. When you visit New York, make sure you see Central Park, Times Square, Chinatown, Little Italy and of course the Statue of Liberty. Additionally, there are many wonderful museums in New York, some truly excellent shops, some of the world’s best theaters in the Broadway area, and the neighborhoods of Greenwich Village and SoHo which are well-known for the artists who reside there.

Getting around New York City is simple—the city’s subway network is one of the most comprehensive in the world, connecting all parts of Manhattan in rapid time.

However, the best way to see New York is undoubtedly on foot. Central Park is an ideal place to start a walking tour of New York City—843 acres of shining ponds and lush greenery attract locals and tourists. And apart from offering breathtaking scenery, it is a centre for recreation. Visitors can listen to music groups, watch performers, walk along the trails and even take a romantic ride in a horse carriage.

The Ouray Ice Park sits at the mouth of a narrow box canyon sculpted by the Uncompahgre River. As we picked our way up the canyon, Davis, operations manager at the park, pointed out the various projects his staff were rushing to complete before opening day. There was signage to build, a new bridge to check, and of course, lots of ice to grow.

He showed. me the lines of water pipes and sprinklers (洒水器) located along the cliff edge. There are more than 200 of these sprinklers, which spray water directly onto the rock, creating walls of ice containing 100-plus climbs. Starting in November when the temperature drops, the ice farmers wet the rock with water to cool it, essentially building a canvas for the waterfalls. They use existing features on the rock to grow a variety of routes for all skill levels. Though the job involves much labour in freezing weather, Davis described growing ice as a kind of art form. If half an ice farmer’s job is creation, the other half is upkeep. Exposed water pipes in the mountains are easy to freeze and break and it is up to those farmers to fix them.

This winter has been unusually warm and temperatures, even in December, were not cold enough to make sufficient ice. It even rained a day before the park was set to open, destroying 30% of the ice farmers’ efforts. “Winter climate is less certain due to the warming of our planet,” said Heidi Steltzer, a professor of environment and sustainability. “Human-made ice may not be possible every year, but in years when it is, the ice park offers joy, a gathering place and opportunities of earning money to sustain rural mountain life.”

Located in the southeast of Canada and with a population of approximately 6 million, Toronto is a big and beautiful city, which has developed from a relatively unknown place over the past half century to the center of culture, trade and communication in Canada.

With its colorful ethnic mix, rich history and breathtaking buildings. Toronto offers non-stop adventures to the tourists. To get a sense of how big, various and magical Toronto is, the best place to start is the CN Tower. From this point, visitors can get a bird's-eye view of the city's amazing scenery and unique geography.

In addition to being an important center of culture, trade and communication in Canada, Toronto is also a major muti-ethnic city. It is the most populous city in Canada and its citizens come from countries around the world and from different kinds of ethnic backgrounds. Every day, in most places of the city, a hundred different languages can be heard on the streets, from Hindi to Greek to French. This, perhaps, explains why former Prime Minister Pierre Trudeau once said that Canada is a mosaic（嵌合体）of cultures and languages rather than a melting pot.

Street signs in Toronto are mostly in English. Weekly and daily newspapers are published in various languages, and the city hosts the successful international film festival each September. It is also home to a popular baseball team the Toronto Blue Jays. Toronto has something for everyone.

Moreover, Toronto has been rated one of the most livable cities in the world by United Nations Human Settlements Programme for many years. At the same time, Toronto is one of the safest, richest cities in the world with the highest standard of living.