One of the most exciting and interesting international cities to visit is London, England. Here is a look at four free things to do during a vacation to London.

    Visit the Trafalgar Square

    Built more than 200 years ago, Trafalgar Square is a popular gathering place for locals and travelers, too. The area is close to good shopping and dining opportunities, and there are usually some sorts of public events or celebrations going on there during most weekends.

    Wander Along the Thames

    Visitors wanting to sec some great architecture, attractions and views should spend an afternoon walking along the River Thames. The best place to start is at the world-famous London Bridge crossing over the river and you can walk all the way to Westminster Bridge a short distance away. Travelers doing this will find themselves passing by a great many historic buildings.

    Explore the Local Markets

    While purchasing items at any of the open markets in London is not necessarily free, walking through them to view the merchants（商人）, their products and the other shoppers is of great fun. Some of the popular open markets in London worth visiting include Spitafields Market, Portobello Road Market and Leadenhall Market.

     Visit the British Museum

    One of the top museums in the entire United Kingdom can be found in London, and it charges no admission（人场费）for entry. This museum is so highly regarded that it is not only popular with locals and tourists, it is also seen as a major and valuable scholarly resource.

    Whether it's music, art, stage, screen, restaurant and bar deals, or the great outdoors – there's always something interesting going on in Hong Kong

    Tim Yip: Blue – Art, Costumes and Memory

    What: A well-known visual artist, costume designer, and art director for stage and film (particularly on his work for Crouching Tiger, Hidden Dragon, for which he won an Oscar), Tim Yip has been a proud promoter of Eastern aestheticism(唯美主义)for 30 years. For his first large-scale solo exhibition in Hong Kong, Yip explores the nature of human imagination and the depths of the subconscious mind. Organized by Mark Holborn, the exhibition is expected to be praised due to Yip's vision of “New Orientalism”.

    Where: HKDI Gallery, Hong Kong Design Institute, 3 King Ling Road, Tiu Keng Leng, Tseung Kwan O

    When: Until March 31, 2019

    Alice's Adventure at Starlight Garden

    What: Introduced last year, this exhibition became a huge hit, with more than 6,000 photos and videos posted online every day. Created by 27 multimedia digital artists from Korea, the exhibition features a 30-foot rabbit hole for visitors to explore the fantasy world made famous in the book Alice's Adventures in Wonderland. This Christmas, New Town Plaza delivers a brand-new interactive digital version of the literary work. In particular, check out the seventh floor, with its bright lighting, glittering mirrors and rose-shaped decorations.

    Where: New Town Plaza, 18 Sha Tin Centre Street, Sha Tin

    When: Until January 13, 2019

    We Travel in Our Minds

    What: This exhibition of sculpture aims to present ideas of theatricality, the fantastical, travel and exchange, with figures that take the forms of humans and animals. Made by artist Ethan Murrow, a professor at the School of the Museum of Fine Arts at Tufts University in Boston, these dream-like objects are inspired by puppetry (木偶戏), music, trade, navigation and beyond, with mixed effects of materiality, sound and imagination.

    Where: Duddell's, Level 3, Shanghai Tang Mansion, 1 Duddell Street, Central

When: Until March 10, 2019

    John Winston Ono Lennon (9 October 1940-8 December 1980) was an English rock musician, singer, songwriter, artist and peace activist who gained worldwide fame as one of the founders of The Beatles. As a member of the group, Lennon was one of the leading singers and co-wrote most of the band's songs with bassist(低音歌手) Paul McCartney.

    In his singing career, Lennon wrote and recorded songs such as Give Peace a Chance and Imagine. Lennon showed his rebellious(反叛的) nature and cleverness on television, in films such as A Hard Day's Night, in his books such as In His Own Write, and in press conferences(新闻发布会) and interviews. He was controversial(有争议的) through his work as a peace activist, artist and author.

    Lennon had two sons: Julian Lennon, with his first wife Cynthia Lennon, and Sean Ono Lennon, with his second wife, avant-garde(前卫) artist Yoko Ono. After a retirement from 1976-1980, Lennon reemerged(再度出现) with a comeback album, but was killed one month later in New York City on 8 December 1980. In 2002, respondents to a BBC poll(投票) on the 100 Greatest Britons voted Lennon into the eighth place. In 2004, Rolling Stone magazine ranked Lennon number 38 on its list of "The Immortals(不朽的): The Fifty Greatest Artists of All Time" and ranked The Beatles number one.

    Last summer, two nineteenth-century cottages were rescued from remote farm fields in Montana, to be moved to an Art Deco building in San Francisco. The houses were made of wood. These cottages once housed early settlers as they worked the dry Montana soil; now they hold Twitter engineers.

    The cottages could be an example of the industry' s odd love affair with "low technology," a concept associated with the natural world, and with old-school craftsmanship (手艺) that exists long before the Internet era. Low technology is not virtual (虚拟的) —so, to take advantage of it, Internet companies have had to get creative. The rescued wood cottages, fitted by hand in the late eighteen-hundreds, are an obvious example, but Twitter's designs lie on the extreme end. Other companies are using a broader interpretation (阐释) of low technology that focuses on nature.

    Amazon is building three glass spheres filled with trees, so that employees can "work and socialize in a more natural, park-like setting." At Google's office, an entire floor is carpeted in glass. Facebook's second Menlo Park campus will have a rooftop park with a walking trail.

    Olle Lundberg, the founder of Lundberg Design, has worked with many tech companies over the years. "We have lost the connection to the maker in our lives, and our tech engineers are the ones who feel impoverished (贫乏的) , because they're surrounded by the digital world," he says. "They're looking for a way to regain their individual identity, and we've found that introducing real crafts is one way to do that."

    This craft based theory is rooted in history, William Morris, the English artist and writer, turned back to pre-industrial arts in the eighteen-sixties, just after the Industrial Revolution. The Arts and Crafts movement defined itself against machines. "Without creative human occupation, people became disconnected from life," Morris said.

    Research has shown that natural environments can restore(恢复) our mental capacities. In Japan, patients are encouraged to "forest-bathe," taking walks through woods to lower their blood pressure.

    These health benefits apply to the workplace as well. Rachel Kaplvin, a professor of environmental psychology, has spent years researching the restorative effects of natural environment. Her research found that workers with access to nature at the office—even simple views of trees and flowers—felt their jobs were less stressful and more satisfying. If low-tech offices can potentially nourish the brains and improve the mental health of employees then, fine, bring on the cottages.

    Mr. Bean is an internationally recognized comedy character on TV and in films. He constantly gets into awkward and absurd situations, which greatly amuses audiences regardless of their nationalities or culture. The humour is always made clear through a series of simple and funny acts that rely purely on body language, which is universal.

    One of my favourite shows is that Mr. Bean has a meal in a fancy restaurant. After being seated at his table, Mr. Bean takes out a card, writes a few words on it, seals (密封) it in an envelope and places it on the table. After a moment, he looks back at the envelope but this time he looks surprised, as if he did not know it was there. He opens it to find a birthday card and delightedly puts it on the table for everyone to see.

    When he looks at the menu, an astonished look swiftly appears on his face. He takes all the money out of his wallet, counts it and puts it in a saucer (茶托). He then looks from the menu to the money with concern until he finds one thing that makes him smile. Then he orders a dish called "steak tartare". When the dish arrives, he is shocked to discover that "steak tartare" is actually raw hamburger. He makes an attempt to eat it, but it is clear from the look on his face that he finds the taste truly disgusting. He cannot hide his feelings, except when the waiter asks if everything is all right. When this happens, he smiles and nods, indicating that everything is fine. When the waiter is not looking, however, he busies himself hiding the raw meat anywhere he can reach-the sugar bowl, the tiny flower vase, inside a bun (小圆面包) and under a plate. He becomes so desperate in the end that he even hides some inside the purse of a woman sitting near him and throws some down the trousers of the restaurant's violinist!

    I like to watch Mr. Bean on TV, but I wouldn't like to meet someone like him in real life and I certainly wouldn't like to have dinner with him!

    NEW HAVEN, Connecticut—A surprise awaited students in Yale who showed up for Professor Laurie Santos's class. They got slips of paper that said, "No class today." There was only one rule for the students' unexpected free time—They were not allowed to study, but to relax. Since exams and papers were coming up, everyone was tired and stressed. At this moment they were touched. With around applause, nine students hugged Santos, and two burst into tears.

    Yet, cancelling class was not just a break. It was also a challenge, as she was asking them to stop worrying about their grades, even if it was just an hour. One student went to the Yale University Art Gallery for the first time in her four years at Yale. A group of students went to a recording studio and played a new song. More people were outside, and more were smiling. That's why about 1, 200 students were taking Santos's class, called "Psychology and the Good Life," the largest class in Yale's 317-year history. Even non-Yale students had the chance to take Santos's class. It was offered as an online course and she immediately became an Internet hit.

    Skyler Robinson, one of her students, was at a loss for a while about what to do during his break, and then decided to take a nap. "It was a great nap," he commented. Santos designed the class after she realized that her students kept busy through long days that seemed far more depressing and joyless than her own college years. "They feel they're in this crazy rat race. They're working so hard that they can't take a single hour off. That's awful."

    The ideas behind the class are simple. Santos said, "It is the hope that science can help students find peace among all the stresses and difficulties they face at college." The lessons include showing more gratitude, performing acts of kindness and increasing social connections. The students really wanted to learn to lead a happy life in a science -driven way. Santos also noted the psychological happening of "mis-wanting", which led people to work towards the wrong goals in life.

    One week, Santo asked students to exercise. Another week, she wanted them to get more sleep. They worked hard to keep some new habits. Social science research led to many new understandings of how people find happiness. She thinks her class can change Yale, or rather, not just Yale.