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Dallas (/ˈdæləs/) is the third largest city in Texas and the largest city in the Dallas–Fort Worth metroplex, the fourth-largest metropolitan area in the United States at 7.5 million people. It is the largest city in and seat of Dallas County with portions extending into Collin, Denton, Kaufman and Rockwall counties. With a 2020 census population of 1,304,379, it is the ninth most-populous city in the U.S. and the third-largest in Texas after Houston and San Antonio. Located in the North Texas region, the city of Dallas is the main core of the largest metropolitan area in the southern United States and the largest inland metropolitan area in the U.S. that lacks any navigable link to the sea.[a]

The cities of Dallas and nearby Fort Worth were initially developed due to the construction of major railroad lines through the area allowing access to cotton, cattle and later oil in North and East Texas. The construction of the Interstate Highway System reinforced Dallas's prominence as a transportation hub, with four major interstate highways converging in the city and a fifth interstate loop around it. Dallas then developed as a strong industrial and financial center and a major inland port, due to the convergence of major railroad lines, interstate highways and the construction of Dallas/Fort Worth International Airport, one of the largest and busiest airports in the world. In addition, Dallas has DART (Dallas Area Rapid Transit) with different colored train lines that transport throughout the Metroplex.

Dominant sectors of its diverse economy include defense, financial services, information technology, telecommunications, and transportation. The Dallas–Fort Worth metroplex hosts 23 Fortune 500 companies, the second most in Texas and fourth most in the United States, and 11 of those companies are located within Dallas city limits. Over 41 colleges and universities are located within its metropolitan area, which is the most of any metropolitan area in Texas. The city has a population from a myriad of ethnic and religious backgrounds and one of the largest LGBT communities in the U.S. WalletHub named Dallas the fifth most diverse city in the United States in 2018.

Beijing, abbreviated as "Beijing", is the capital of the people's Republic of China and one of the four municipalities directly under the Central Government in China. Beijing is a national central city, a mega city, a national political center, a cultural center, a center for international exchanges, a center for scientific and technological innovation, a world-famous ancient capital and a modern international city. It is also the office location of the Central Committee of Communist Party of China, the Central people's Government of the people's Republic of China and the standing Committee of the National people's Congress. Beijing is located in North China, with longitude 116o 20 'east and latitude 39 °56km north, adjoining Tianjin to the east and Hebei to the east. Beijing has a total area of 16410.54 square kilometers. As of September 2019, Beijing has jurisdiction over 16 municipal districts. The terrain of Beijing is high in the northwest and low in the southeast. Three sides of the west, north and northeast
Airport In Beijing - Beijing Capital International Airport
Beijing Capital International Airport (Beijing Capital International Airport, IATA: PEK, ICAO: ZBAA), located in the northeast suburb of Beijing, China, 25 kilometers southwest of Beijing city center, 67 kilometers south of Beijing Daxing International Airport, is a 4F international airport   , is one of the three major portal complex hubs in China   , members of the international air cargo hub group in the Bohai Rim region   , the world's largest airport   .
Beijing Capital International Airport was built in 1958. On January 1, 1980, supporting projects such as the T1 terminal building, the apron, and the parking lot in front of the building were completed and officially put into use. On November 1, 1999, the T2 terminal was officially put into use, and at the same time, the T1 terminal was closed for renovation. On September 20, 2004, the T1 terminal was put into use again. In the spring of 2008, the airport expansion project (Terminal T3) was completed.  
As of July 2017, Beijing Capital International Airport has three terminal buildings with a total area of ​​1.41 million square meters; there are two 4F runways and one 4E runway   The length and width are 3800×60 meters, 3200×50 meters, 3800 meters×60 meters respectively; there are 314 seats in total; 252 domestic and foreign routes have been opened.    
From 1978 to 2018, the annual passenger throughput of Beijing Capital International Airport increased from 1.03 million to 101 million, ranking first in Asia and second in the world.   In 2019, the passenger throughput of Beijing Capital International Airport was 100.013 million passengers, a year-on-year decrease of 1.0%; the cargo and mail throughput was 1.9553 million tons, a year-on-year decrease of 5.7%; , No. 2, No. 1.  
In 2021, Capital Airport will add three new domestic destinations, namely Huai'an, Tumusuk and Jingzhou   .
Travel Notes In Beijing
Beijing to Datong - Hanging Temple - Taiyuan - Pingyao Ancient City self-driving homework
first day It is best to drive to Datong one day in advance. The journey is about 346.7 kilometers and the time-consuming: 5 hours and 30 minutes. Choo
Seeking marriage must go! The 2020 Beijing Spring Festival Temple Fair Must-Visit Hongluo Temple New Year Prayer Raiders
"There is Putuo in the south, and Hongluo in the north." During the Spring Festival, many people will go to Hongluo Temple to worship the Buddha and p
Beijing Yanqi Lake: the scenic spots are too beautiful to behold, and there are top1 parent-child hotels, you must go
The sun is just right, and the breeze is not dry. The upcoming Labor Day, while protecting yourself, remember to go out occasionally. I will continue
Hidden in the CBD of Beijing, a fun, delicious, and easy-to-go deep mountain market
Beijing in early autumn is breezy and cool. Beijing Kerry Center, which has always been labeled as business, high-end, fashion and trendy, has a diffe