Tayka Hotel de Sal

Where: Tahua, Bolivia

How much: About $ 95 a night

Why it's cool: You've stayed at hotels made of brick or wood, but salt? That's something few can claim. Tayka Hotel de Sal is made totally ofsalt—including the beds (though you'll sleep on regular mattresses andblankets). The hotel sits on the Salar de Uyuni, a prehistoric dried-up lakewhich is the world's biggest salt flat. Builders use the salt from the 4,633-square-mile flat to make the bricks, and glue them together with a paste(糊) of wet salt that hardens when it dries. When rain starts to dissolve (溶解) the hotel, the owners just mix up more salt paste to strengthen the bricks.

Green Magic Nature Resort

Where: Vythiri, India

How much: About $ 240 a night

Why it's cool: Taking a pulley(滑轮)—operated lift 86 feet to your treetop room is just the start of your adventure. As you look out of your open window, there is no glass! You watch monkeys and birds inthe rain forest canopy(罩篷). Later you might test your fear of heights by crossing the handmade rope bridge to themain part of the hotel, or just sit on your bamboo bed and read. You don't evenhave to come down for breakfast—the hotel will send it up on the pulley-drawn“elevator”.

Dog Bark Park Inn B&B

Where: Cottonwood, Idaho

How much: $ 92 a night

Why it's cool: This doghouse isn't just for the family pet. SweetWilly is a 30-foot-tall dog with guest rooms in his belly. Climb the wooden stairs beside his hind leg to enter the door in his side. You can relax in the main bedroom, go up a few steps of the loft(阁楼) in Willy's head, or hang out inside his nose. Although you have a full private bathroom in your quarters, there is also a toilet in the 12-foot-tall fire hydrant(消防栓) outside.

Gamirasu Cave Hotel

Where: Ayvali, Turkey

How much: Between $ 130 and $ 450 a night

Why it's cool: Experience what it was like 5,000 years ago, when people lived in these mountain caves formed by volcanic ash. But your stay will be much more modern. Bathrooms and electricity provide what you expect from a modern hotel, and the white volcanic ash, called tufa, keeps the rooms cool insummer. (Don't worry— there is heat in winter.)

    One fine afternoon I was walking along Fifth Avenue when I remembered that it was necessary to buy a pair of socks. I turned into the first sock shop that caught my eye, and a boy clerk who could not have been more than 17 years old came forward.

    “What can I do for you, sir?”

    “I wish to buy a pair of socks.”

    His eyes glowed. “Did you know that you had come into the best place in the world to buy socks?” I had not been aware of that.

    “Come with me,” said the boy happily. He began to haul (用力拖) down from the shelves box after box.

    “Hold on, boy, I am going to buy only one pair!”

    “I know that,” said he, “but I want you to see how beautiful these are. Aren't they wonderful?” There was on his face an expression of joy, as if he were showing to me the mysteries of his religion.

    “My friend,” said I, “if this is not just the enthusiasm (热情) that comes from novelty (新鲜), if you can keep up this day after day, in ten years you will own every sock in the United States.”

    In many shops the customer has to wait for someone to serve him. And when finally some clerk does notice you, you are made to feel as if you were disturbing him. He displays no interest either in you or in the goods he is paid to sell.

    Yet possibly that very clerk who is now so cold began his career with enthusiasm. As time goes by, the enthusiasm is gradually gone; his only pleasures were found outside of working hours. He became a mechanical (机械的), not inspired, salesman.

    I have observed such change in the lives of so many people in so many occupations that I have come to the conclusion that the fastest road to failure is to do things mechanically.

    Tea，the most typical English drink，became established in Britain because of the influence of a foreign princess，Catherine of Braganza，the queen of Charles II．As a lover of tea since her childhood in Portugal，she brought tea-drinking to the English royal court and set a trend for the beverage in the 17th century．The fashion soon spread beyond the circle of the nobility to the middle classes，and tea became a popular drink at the London coffee houses where people met to do business and discuss events of the day．Many employers served a cup of tea to their workers in the middle of the morning，thus inventing a lasting British institution，the“tea break”. However，drinking tea in social settings outside the workplace was beyond the means of the majority of British people．It came with a high price tag and tea was taxed as well．

    Around 1 800，the seventh Duchess of Bedford，Anne Maria，began the popular practice of“afternoon tea，”a ceremony taking place at about four o'clock．Until then，people did not usually eat or drink anything between lunch and dinner．At approximately the same time，the Earl of Sandwich popularized a new way of eating bread—in thin slices，with something like jam or cucumbers between them．Before long，a small meal at the end of the afternoon，involving tea and sandwiches，had become part of the British way of life．

    As tea became much cheaper during the 19th century，its popularity spread right through all corners of the British society．Thus，tea became Britain's favorite drink．In working-class households，it was served with the main meal of the day，eaten when workers returned home after a day's labor．This meal has become known as“high tea”．Today，tea can be drunk at any time of the day，and accounts for over two-fifths of all drinks consumed in Britain-with the exception of water．

    Spring is a wonderful season to celebrate rebirth and new life. The long, cold winter is over. The weather is warmer and sunnier. The trees again have leaves and the flowers are blooming. The season represents hope, joy and beauty. At this time, many people think of this classical music piece—Spring, which shows happiness. Italian composer Antonio Vivaldi wrote it in the seventeen hundreds.

    However, not all songs about spring are happy. This song written and sung by K.D. Lang is about dreaming of spring in cold dark places. She recorded I Dream of Spring in 2008.

    Richard Rodgers and Oscar Hammerstein wrote It Might as Well Be Spring for the movie State Fair in 1945.Frank Sinatra sings it. It is a feeling of restlessness or excitement brought on by the coming of spring. Richard Rodgers also wrote Spring Is Here, this time with Lorenz Hart. Ella Fitzgerald sings this song about feeling lonely during this season.

    Frank Loesser wrote the sad song, Spring Will Be a Little Late This Year. Why has the season been delayed? Because the singer's lover has left her. Sarah Vaughn released(发行) her version of the song in 1953.

    By now you may be thinking, "Enough with the sad songs, already！"OK ,then how about a cowboy song? Gene Autry was one of the America's most famous singing cowboys. He recorded When It's Spring time in the Rockies in 1937.

    And finally, we'll leave you with a sunny song called Up Jumped Spring. Freddie Hubbard wrote this jazz song in 1977 and Billy Taylor Trio performs it.

    One of the most famous buildings in the United States is Carnegie Hall, the home of classical and popular music concerts in New York. Carnegie Hall is known not just for its beauty and history, but also for its amazing sound. Carnegie Hall is named after Andrew Carnegie, who paid for its construction. Construction of Carnegie Hall began in 1890 and the official opening night was on May 5th, 1891.

    The hall was owned by the Carnegie family until 1924 when it was sold to Robert E Simon. The building became very old and in 1960, the new owner made plans to destroy it and build an office block. Isaac Stem led a group of people who fought to save Carnegie Hall and finally, the city of New York bought it for $5 million. It was then fixed up between 1983 and 1995.

    Advertisements and stories in newspapers about how Carnegie Hall needed help to recover its history led people to send in old concert programmes and information from all over the world. Over 12,000 concert programmes were received and with these it was possible to make a proper record of Carnegie Hall's concert history.

    Carnegie Hall is actually made up of several different halls, but the Main Hall, now called the Isaac Stem Auditorium, is the most famous. The hall itself can hold an audience of 2,804 in five levels of seating.

    Because the best and most famous musicians of all time have played at Carnegie Hall, it is the dream of most musicians who want to be great to play there. This has led to a very old joke which is now part of Carnegie Hall's history. Question: “How do I get to Carnegie Hall?” Answer: “Practice, practice, practice.”

    When Gitanjali Rao shared how she likes "finding solutions to real problems”, it was hard to imagine this dynamic 11-year-old girl could settle a problem that has escaped scientists for years.

    In just three months, Rao came up with a device（装置）that can replace the costly and lengthy tests currently used to reliably determine lead levels in our fresh water. Inspired by the current litigation （诉讼）in Flint, Michigan, a case of water pollution from 2014 to 2015, Rao designed a new testing system that resulted in her being named America's Top Young Scientist for 2017.

    Rao had been following the water problem for about two years. She was amazed by the number of people affected by lead pollution in water and wanted to do something to change this. Gitanjali spent months trying to convince local high schools and colleges to give her lab time to continue her experiment. At home, Gitanjali worked on her project in the "science room” she asked her parents to create for her. Rao has created a device that uses three parts: a cartridge, a Bluetooth reader and an app. To put it simply, the cartridge contains carbon nanotubes（纳米管） that react to lead. This reaction is then registered by the Bluetooth reader, which sends a signal to a mobile app that can tell you immediately if your water is safe to drink.

    Rao appropriately named the device Tethys after the Greek goddess of fresh water, and is hoping to make a little improvement to get the device on the market. While we may not be aware of any lead pollution present in our aging pipelines, lead poisoning can cause delays in physical and mental development. With Rao believing that the "purpose of science is to make a difference”, her incredible invention could make a difference to millions of people in the United States.