When people today talk about a tiny house, they probably mean the trendy living space that's about the size of a shed (棚). But you would have to be five inches tall to live in the original tiny houses. Dollhouse(小房子)，which have been around for several centuries, don't offer shelter to real people, but they provide a vivid（生动的） experience of life in times and places both real and imaginary.

    The National Building Museum in Washington, D.C., lets visitors time travel in this tiny world through ―Small Stories: At Home in a Dollhouse,” an exhibit that opened Saturday. Visitors can see twelve dollhouses from the Victoria and Albert Museum in London, England, which contain amazing tiny furnishings. But those people who put together the exhibit also wanted visitors to know the characters inside.

    “It's 300 years of British homes told through their inhabitants (居民),” said Alice Sage, who is in charge of the London museum.

    So as visitors look inside the Tate Baby House, a fancy townhouse from 1760, they can push a button to hear a young woman get a lecture from her mother on the proper way to run a home. In the Killer Cabinet house, a servant named Betsy complains about the problems of city life in the 1830s. “We've got the cat to keep the rats away,” she says.

    That dollhouse was John Killer's gift to his wife and five daughters. The girls were allowed to play with the house, but they probably also learned a few lessons, Sage said.

    “The kitchen of the house would have been the perfect way to teach the girls about the management of a home,” she said, noting the tiny dishes and pots.

    Those who prefer a more modern look won't be disappointed. There are two rooms displaying a white dollhouse from 1935, an apartment house from the 1960s and a brightly colored 21st-century design.

    The end of the exhibit shows how imaginative design sometimes works best in small spaces.

    The Building Museum asked twenty-four artists, designers and architects from across the United States to each create a “dream room” from the past, present or future. Some of these unique small rooms were made using traditional furnishings, others from materials such as clay, insects, 3D-printing, and even peeps marshmallow candies!

    We hope you've finally made your peace with Pluto being downgraded from a planet to an ice dwarf (冰矮星)，because we have some more jarring news for you : It seems your teachers may have been wrong about the number of continents on the earth, too.

    Earlier this year, scientists published a report in the journal of the Geological Society of America detailing an eighth continent called Zealandia, roughly the size of India and almost completely hid itself under the Pacific Ocean east of Australia. Covering all of New Zealand as well as several nearby islands, Zealandia likely spent the best of its above-water days as part of the supercontinent Gondwana before fragmenting off Australia and Antarctica some 80 million years ago. This lost, underwater continent is just beginning to reveal its secrets, making for one of the most promising scientific discoveries this year.

    While researchers have been aware of the 1. 9 million-square-mile mass for two decades, Zealandia has only recently become the object of serious study since the Geological Society paper argued that it fits all the criteria for a proper continent, including a continental crust (地壳)that's distinctly separate from the seabed in terms of elevation, thickness, and geology. A team of 32 scientists from 12 countries just completed their first visit to six dig sites around Zealandia, where they drilled up more than 8,000 feet of sediment cores (沉积物岩心)that will help explain the lost continent's 80-million-year history.

    Because there is no official body that formally recognizes continents, whether or not Zealandia ends up in future geography textbooks will come down to its acceptance by the scientific community at large, possibly with a little help from travelers like you.

    BKLYN House Hotel

    This hotel features works by Brooklyn artists. The 116 rooms are of good value—Manhattan is only 20 minutes away by taxi or subway. The immediate surroundings feel urban—the hotel is by a high-rise public housing project while the nearest commercial street is under elevated subway tracks—but Bushwick's best bars and cafes/restaurants are nearby.

    Doubles from $99, room only. Tel：718 388 4433

    Archer Hotel

    Visitors eager to stay in the heart of Manhattan should try one of the bargain-priced rooms at this hotel. Rates vary from great value to expensive; some start from as low as $179 a night (if prepaying in full). Rooms are small but tasteful, with nice touches such as exposed brick. Some have close-up views of the Empire State Building.

    Doubles from $199, room only. Tel: 212 719 4100

    Pod 39 Hotel

    In an elegant brick building in Manhattan's Murray Hill, this excellent budget option opened following the success of its sister hotel, The Pod. The rooms are called pods given their small size and may not suit everyone. But with prices among the most competitive in Manhattan, budgeters will be happy.

    Doubles from $95, room only. Tel：212 865 5700

    CitizenM New York Times Square

    This is the first US location for a Netherlands-based concept hotel chain—CitizenM. The hotel features self check-in at its 230 little but comfortable rooms via touch screen “MoodPads”. There's a rooftop bar, a 24-hour grab-and-go cafeteria and an area with public iMac workspaces. Although New Yorkers avoid nearby Times Square, all the lights, cameras and action can make it a fun tourist experience.

    Doubles from $170, room only. Tel：212 319 7000

    Below you will find a profile of each gap year program. If there is a specific program you are interested in or a question you have regarding these programs, please feel free to contact them directly.

    Youth International

    Since 1997, Youth International has been providing many people with the most exciting and educational experience of their life. It is a learning program that combines international travel, inter-cultural exchange, home stays, volunteer community service work and outdoor adventures.

    Phone: 720-270-3323

    Carpe Diem Education

    Through volunteer service, travel and cultural exchange, students of Carpe Diem Education receive a personal insight into themselves and their cultures. We specialize in guiding summer and semester programs for high school students. Each course is carefully crafted to develop leadership and self-awareness within our students, who return home better prepared to be leaders in thought and action.

    Phone: 503-285-1800

    Center for Interim Programs

    Founded in 1980, Center for Interim Programs is the first independent gap-year organization in America. Based on students' interests and budget, our experienced teachers help make individual course choices including: low cost volunteer options, language programs, research trips, and so on. We are committed to helping students find more experiences of formal education and work.

    Phone: 413-585-0980

    EF Gap Year

    EF Gap Year offers students the ability to explore several countries where you will learn a language, volunteer for a good cause, gain international work experience. Choose between a 12-week semester or 26-week academic year. You can then personalize your program to meet your learning goals and interests by deciding where, when, and how you wish to study on your own. Our well-structured curriculum even allows you to place out of college-level classes and earn advanced credits toward graduation.

    Phone: 800-726-9746

Lanrick Jr. Bennett holds a unique title in Toronto: bicycle mayor. He led a Halloween Kidical Mass ride recently, which I attended with my daughter, son-in-law, their two dogs, and my granddaughter. He is working towards making cycling mainstream and safe for all residents in the city. I did not know that Toronto had a bicycle mayor; I surely would have voted for him in an election.

The bicycle mayor program is run by BYCS, an Amsterdam-based global NGO that believes "bicycles transform cities and cities transform the world". Standing in the strange but wonderful Bentway, a park built under an elevated expressway, Bennett says, "BYCS has 150 bicycle mayors across the world. And through a few friends putting in some really nice letters of encouragement, BYCS offered me a two-year term as an advocate here in the city of Toronto, becoming the first bicycle mayor of the city."

Bennett says he is boosting the work being done to make cycling more mainstream in Toronto. "I am giving a bit more exposure to the great work that has allowed me to be able to ride a bike throughout the city. It's getting better, we're seeing more infrastructure（基础设施）, and we're seeing more people not wanting to depend on cars as their primary piece. I'm happy that I have been part of a fantastic group thus far," says Bennett.

Since there's still a lot of work to do, Lanrick Jr. Bennett has been working hard to improve cycling conditions in Toronto, and his efforts have been recognized by the community. He has been advocating for more bike lanes（车道）, better lighting, and other safety measures to make cycling a practical option for commuters（通勤者）. It's great to see people like Lanrick

Jr. Bennett working towards making cycling safe and accessible for all residents.

Big Stuff

Do you know what is the tallest building in the world and where the tallest Ferris wheel is? Have you heard of the world's steepest roller coaster? Have you seen the biggest monster truck? Here are some of the most huge things on Earth.

A Towering Achievement

Burj Khalifa, a tower in Dubai, United Arab Emirates, is the world's tallest structure. The 162-story building, which opened in 2010, stands over 2,717 feet tall. Seen from above, the tower has a Y-shaped design. Its three tall, narrow wings are joined in the middle. Like the legs of a tripod （三脚架）, each wing is supported by the other two.

A Wheel Winner

About 15 miles from the world's tallest building stands the world's tallest Ferris wheel, Ain Dubai. Also called an observation wheel, Ain Dubai stands 820 feet tall. Each of the 48 cabins can carry 40 people for spectacular views of Dubai, United Arab Emirates. Before construction, support columns had to be driven 115 feet down through the earth to reach bedrock.

Extreme Ups and Downs

The world's tallest roller coaster is Kingda Ka at Six Flags Great Adventure. At 456 feet, the peak of the ride towers over nearby Jackson, New Jersey. A 500-foot-tall crane was needed to place the final section at the top. Like many weight-bearing structures, the tower makes use of the most stable geometric （几何的） shape, the triangle.

A Monster of a Truck

Designed and built by business owner Bob Chandler, Bigfoot 5 has held the record for the world's biggest monster truck since 

1986. Other trucks, including Bigfoot models, have been designed to perform better in competitions. But Bigfoot 5 still stands above the crowd, thanks to its 10-foot-tall tires. The tires were originally designed for equipment that drives on Alaska's snowy tundra.