Kuala Lumpur international airport is one of the kangaroo route stops, but because in the airport in the recovery period the service is also the Asian financial crisis and so few people arrived at the airport and airport in the region and lead to various airlines performance deficit, therefore, British airways, Austrian airlines and the Australian airline grounded Kuala Lumpur international airport at that time, so only stay Malaysia airlines at the airport.Airport management remains optimistic that British Airways and Qantas will re-use KLIA as a stopover point for kangaroo routes.On May 28, 2015, British Airways returned to Kuala Lumpur.Malaysia Airports Holding said it was in talks with Qantas Airlines to resume flights to Kuala Lumpur.Terminal 1 was designed by the famous Japanese architect Kurokawa, using the concept of "an airport in A forest, A forest in an airport". The main terminal is surrounded by green shade, while the central satellite terminal A has an open-air room with views of the tropical rainforest outside.Terminal 2 was designed by Malaysian firm HL Architecture and Design Group Limited in collaboration with the AAP Architecture team. The concept is a series of simple folding planes that surround the entire airport building.[2] The airport has won the honor of the World's Best Airport, the Best Airport Customer Service Evaluation, the Five Star Airport Evaluation and other awards.Signs at the airport are written in English, Malay, Chinese, Japanese and Arabic.In addition, English, Malay, Chinese and Japanese are also used in the airport information and announcements broadcast.KLIA is also the first airport in Asia, the third in the world with a Skybridge, the first in Southeast Asia, the fourth in Asia with a third runway, and the world's tallest (West Tower) and third tallest (East Tower) air traffic control tower.