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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.

Changhai County, under the jurisdiction of Dalian City, Liaoning Province, is located in the Changshan Islands and belongs to the extension of Changbai Mountain Mountains. It belongs to the warm temperate semi-humid monsoon climate, with four distinct seasons, warm in winter and cool in summer, sufficient sunshine and small temperature difference; the total land area is 142.04 square kilometers, and it has jurisdiction over 5 towns; it has a registered population of 71226 in 2018. Changhai County is the only island county in Northeast China and the only island border county in the country. It is located in the northern part of the Yellow Sea to the east of the Liaodong Peninsula, opposite to the Korean Peninsula in the east, opposite to the Miaodao Islands in Shandong Province in the southwest, and adjacent to the urban areas of Dalian, Pulandian City and Zhuanghe City in the west and north. It is the nearest area to Japan and South Korea in the northeast. In November 2018, Changhai County was selected into the national "Happiness 100 Counties list". In 2018, Changhai County achieved a GDP of 9.45 billion.
Airport In Changhai County - Dalian Zhoushuizi International Airport
Dalian Zhoushuizi International Airport (Dalian Zhoushuizi International Airport, IATA: DLC, ICAO: ZYTL), located in Ganjingzi District, Dalian City, Liaoning Province, China, is a 4E-level civil transport airport. One of the important airports, it is a national first-class civil international airport, a major domestic trunk line airport and an international scheduled flight airport.    
Dalian Zhoushuizi International Airport was opened to traffic on October 6, 1972. In 1984, 1992, 1999 and 2005, the airport was expanded and upgraded successively.   On September 6, 2011, the third-phase terminal building of the airport was completed and put into use, and the annual passenger handling capacity of the airport rose to 16 million to 20 million passengers.  
According to the official website of Dalian Zhoushuizi International Airport in November 2017, the airport covers an area of ​​3.45 million square meters and has a 3300-meter-long runway; the area of ​​the apron is 660,000 square meters, and there are 42 parking spaces (including 18 corridor bridges); The total area of ​​the terminal building is 135,000 square meters; a total of 88 cities and 146 domestic and overseas routes have been opened.  
In 2016, the passenger throughput of Dalian Zhoushuizi International Airport was 15,258,200 passengers, a year-on-year increase of 7.8%, exceeding 15 million passengers for the first time.  
In 2017, the passenger throughput of Dalian Zhoushuizi International Airport was 17.5 million, a year-on-year increase of 14.7%, the largest increase since 2014. The cargo and mail throughput was 166,000 tons, a year-on-year increase of 12.1%; the number of takeoffs and landings was 141,000, a year-on-year increase of 10.7%; they ranked 23rd, 17th, and 21st in mainland China respectively.
Travel Guides In Changhai County
Travel Sights In Changhai County
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Travel Asks In Changhai County
Travel Asks In Changhai County