• Washington
  • Tianjin

Washington, D.C., formally the District of Columbia, also known as Washington or D.C. or locally simply as the District, is the capital city and federal district of the United States. It is located on the east bank of the Potomac River, which forms its southwestern and southern border with the U.S. state of Virginia, and it shares a land border with the U.S. state of Maryland on its other sides. The city was named for George Washington, a Founding Father and the first president of the United States, and the federal district is named after Columbia, the female personification of the nation. As the seat of the U.S. federal government and several international organizations, the city is an important world political capital. It is one of the most visited cities in the U.S., with over 20 million annual visitors as of 2016.

The U.S. Constitution provides for a federal district under the exclusive jurisdiction of Congress; the district is not a part of any U.S. state (nor is it one itself). The signing of the Residence Act on July 16, 1790, approved the creation of the capital district located along the Potomac River near the country's East Coast. The City of Washington was founded in 1791, and Congress held its first session there in 1800. In 1801, the territory, formerly part of Maryland and Virginia (including the settlements of Georgetown and Alexandria), officially became recognized as the federal district. In 1846, Congress returned the land originally ceded by Virginia, including the city of Alexandria; in 1871, it created a single municipal government for the remaining portion of the district. There have been efforts to make the city into a state since the 1880s, a movement that has gained momentum in recent years, and a statehood bill passed the House of Representatives in 2021.

Tianjin, referred to as Tianjin, is the provincial administrative region, municipality directly under the Central Government, national central city and mega city of the people's Republic of China, and the economic center of the area around the Bohai Sea as approved by the State Council. By 2018, there were 16 districts under the jurisdiction of the city, with a total area of 11916.85 square kilometers, a built area of 1007.91 square kilometers, a resident population of 15.596 million, an urban population of 12.9681 million, and a urbanization rate of 83.15%. Tianjin is located in North China, the northeast of the North China Plain and the lower reaches of the Haihe River Basin, facing the Bohai Sea to the east. It is the confluence and estuary of the five major tributaries of the Haihe River, namely, the South Canal, the Ziya River, the Daqing River, the Yongding River and the North Canal. Tianjin is the main node of the China-Mongolia-Russia Economic Corridor and the Maritime Silk Road.
Airport In Tianjin - Tianjin Binhai International Airport
Tianjin Binhai International Airport (Tianjin Binhai International Airport, IATA: TSN, ICAO: ZBTJ), located in Dongli District, Tianjin, China, 13 kilometers away from the city center, is a 4E-level civil international airport     , is China International Aviation Logistics Center   , an airport with international scheduled flights, a national first-class air port open to the outside world, and one of China's major air cargo centers.    
Tianjin Binhai International Airport, formerly known as Tianjin Zhangguizhuang Airport, was first built in November 1939; it was officially opened to navigation in 1950; the first phase of the expansion project was completed in 2007; the second phase of the expansion project was completed in August 2014.   
According to the official website of the airport in August 2017, Tianjin Binhai International Airport has two terminal buildings, namely T1 (international and regional) and T2 (domestic), with a total construction area of ​​364,000 square meters and a warehouse area of ​​74,000 square meters; It has 2 runways with lengths of 3600 meters and 3200 meters respectively; 59 seats.   By the end of 2016, the airport had opened 180 air routes and 132 navigable cities.  
In 2019, Tianjin Airport handled 23.813 million passengers, a year-on-year increase of 0.9%; cargo and mail throughput was 226,000 tons, a year-on-year decrease of 12.6%; and transported 167,000 vehicles, a year-on-year decrease of 6.4%.  
In October 2020, it was rated as an advanced group in the national transportation system to fight against the new crown pneumonia epidemic.  
Travel Notes In Tianjin
Tianjin impression. . . . . . memorable
I have been to all the four major municipalities directly under the central government in China, but only Tianjin has not had a good time. I have been
Beijing-Tianjin Walking Baby Story, a precise harvest for educational anxiety
Education Anxiety! Recently, a popular educational documentary "Childhood in a Foreign Land" deeply hit the anxiety of countless parents, including m
Extraordinary Gengzi Year Simple Leting Seaside and Lion City Tour
2020 is destined to be an extraordinary year. This is the Year of the Gengzi. The old man said that the Year of the Gengzi is not easy. Earth-shatteri
Three-day free travel in Tianjin to appreciate the vicissitudes and prosperity of Tianjin
Tell me about this trip: The former name of Tianjin was "Zhigu". Because Zhu Di, king of Yan, captured Nanjing from Zhigu and seized the throne, Zhigu