Kathmandu is the capital city of the Federal Democratic Republic of Nepal, the largest Himalayan state in Asia. It is the largest metropolis in Nepal, with a population of 1.4 million in the city proper, and 2.5 million in its urban agglomeration across the Kathmandu Valley, which includes the towns of Lalitpur, Kirtipur, Madhyapur Thimi and Bhaktapur. Kathmandu is also the largest metropolis in the Himalayan hill region.
The city stands at an elevation of approximately 1,400 metres (4,600 feet) above sea level in the bowl-shaped Kathmandu Valley of central Nepal. The valley is historically termed as "Nepal Proper" and has been the home of Newar culture, a cosmopolitan urban civilization in the Himalayan foothills.
Kathmandu has been the center of Nepal's history, art, culture and economy. It has a multiethnic population within a Hindu and Buddhist majority. Religious and cultural festivities form a major part of the lives of people residing in Kathmandu. Tourism is an important part of the economy as the city is the gateway to the Nepalese Himalayas.
Nepali is the most spoken language in the city, while English is understood by the city's educated residents.
Tribhuvan International Airport is an international airport in Kathmandu, Nepal. The airport is about six kilometres from the city centre, in the Kathmandu valley. It is the sole international airport in Nepal, though Nijgadh International Airport has been proposed as a second. The airport has served as an airfield since 1949, and was inaugurated in 1955 by King Mahendra. It received its current name in 1964. Originally a grass runway, it was re-laid in concrete in 1957 and has been extended several times. The first jet aircraft landed at Tribhuvan in 1967 and regular jet operations commenced in 1972.
The airport has one domestic and one international terminal. In 2015, the airport handled 3.21 million passengers, down 8.37% from 2014. At present, about 30 international airlines connect Nepal to destinations in Asia and the Middle East, and the airport serves as a hub for several Nepalese airlines.
The airport has a single 10,007 feet (3,050 m) concrete runway orientated 02/20. There is no instrument landing system available. The airport has two public terminals—one for international and one for domestic traffic. It also has a terminal for VIP guests. There are some tea shops outside the airport. There are few ATMs for drawing money.