3 . The Crystal Palace was a cast iron and plate glass structure originally ______ in Hyde Park, London, to house the Great Exhibition of 1851.

The exhibition took place from 1 May to 15 October 1851, and more than 14, 000 ______ from around the world gathered to ______ examples of technology developed in the Industrial Revolution. ______ by Joseph Paxton, the Great Exhibition building was 1,851 feet（564 m） long, with an inside height of 128 feet（39 m）. It was three times the ______ of St Paul’s Cathedral.

The introduction of the glass sheets method into Britain by Chance Brothers in 1832 made ______ the production of large sheets of cheap but strong glass. Its ______ in the Crystal Palace created a structure with the greatest area of ______ ever seen in a building. It ______ visitors with its clear walls and ceilings that did not ______ inside lights.

It has been said that the name of the building _____ from an article by the playwright （剧作家）Douglas Jerrold. He wrote in a magazine called Punch about the coming Great Exhibition, ______ to a “palace of very crystal”.

After the exhibition, the palace was moved to an area of South London known as Penge Common. It was rebuilt at the top of Penge Peak next to Sydenham Hill. It stood there from June 1854 until its ______ by fire in November 1936. The nearby residential（住宅的）area was ______ Crystal Palace after the landmark. Crystal Palace Football Club was founded at the site in 1905. The club still ______ Benjamin Waterhouse Hawkins’s Crystal Palace Dinosaurs which date back to 1854.

4 . Wonderful Destinations You Can Explore in the World

While travel is still just a dream for many, we know that some of you are now eager to pencil in your next adventure. We are now taking bookings for our 2021 and 2022 tours, offering the following destinations.

The Dolomite Mountains in Italy

8 days; September 6, 2021

Go on a gentle outdoor tour through the impressive Dolomite Mountains where scientists investigate several scientific phenomena including geology, ecology, deep time and astronomy.

The gateway to the solar system in Iceland

8 days; November 20, 2021

Visit the sites where scientists test space mission in the world. You will visit remote lava fields, glaciers and Mars rover (巡视器) test sites to explore how technology can help us research other worlds, as well as adapt to our own climate challenges.

The Fjords of Norway

7 days; January 18, 2022

Explore the Fjords of Norway as you start the winter voyage to watch the wonderful northern lights and underwater life of the Arctic. Learn about the science behind the northern lights, watch whales from the sea, try your hand at dog sledding or simply relax around a campfire under the stars.

The volcanic fields in Italy

8 days; September 3, 2021

Experience the beauty and power of two of the world’s most impressive active volcanoes on Mount Etna and Mount Stromboli. Explore the Aeolian Islands of Lipari and Vulcano while enjoying scenic landscapes and Italian warmth.

Whether you are ready to book or just want to carry on dreaming for now, we expect you to enjoy looking through some of the new tours we have created. For more information on all our new tours for 2021 and 2022, visit www. new scientist. com/tours.

5 . Places to see in Sweden

Sweden is a classic and attractive tourist country. There are a number of attractive castles and museums spreading across the country. The pleasant climate is the soul of Sweden. The country is at its best during the summer and early fall, during which it comes alive. Tourists can enjoy many sporting activities, and skating and skiing are two of the most famous ones. Here, we recommend the best places to see to make your visit to Sweden memorable for a lifetime.

Cities to visit in Sweden

The top tourist attractions in Sweden include these cities that will astonish you and open your eyes to a different world.

Stockholm, which is built on fourteen islands, is the capital of Sweden. The city has a long list of museums which are visited by millions every year. These all remain closed on Monday. They include The Royal Palace, Aquaria （水族馆） Water Museum, Swedish Museum of Architecture, Museum of Dance and so on. They are must-see places in Sweden.

Helsingborg is also known as the “Pearl of the Oresund （厄勒海峡）”. It is surrounded by seas: the Kattegat Sea, the Oresund and the Baltic Sea. Charming costal places are the best features of Helsingborg.

Lund, Kiruna, Landskrona, Gothenburg, Gotland and Malmo are the other popular cities in Sweden.

Lakes in Sweden

Lake Vanern

The largest lake in Sweden, Lake Vanern, has an area of 5, 655 km². It contains 20, 000 small islands and rocks. This lake is home to a variety of birds and nearly 35 species of fish.

Lake Vattern

Lake Vattern covers 1, 912 km² and is 128 metres deep. The lakeside is where hot air ballooning festivals and the annual 300-kilometer cycling take place.

National Parks

Padjelanta National Park

Padjelanta National Park, set up in 1962, is the largest national park in Sweden. It has plenty of wildlife to attract visitors.

Serek National Park

The wilderness of Serek National Park covers an area of 1, 970 km². This beautiful place has a wonderful combination of mountains and glaciers （冰川）.