The display took 7 years and roughly $4.8 million to build.
The model includes a whopping list of accessories, including 40 planes, 40,000 lights, 15,000 figurines, 500 cars, 10,000 trees, 50 trains, 1000 wagons, 100 signals, 200 switches and 300 buildings.
The figurines move autonomously via computer (watch the video below the slideshow of a plane taxiing the runway).
The roughly 494-square feet display opened on Wednesday.
Check out detailed shots of the incredible miniature airport below.
Knuffingen Airport, World's Largest Miniature Airport, Goes On Display In Germany (PHOTOS)
A general view at the opening of the new miniature model Knuffingen Aiport at Miniatur Wunderland on the airport's opening day in Hamburg, Germany. Miniatur Wunderland is the world's largest model railroad landscape, and the model airport, also the world's largest, goes into operation following 6 years of development and construction and an investment of EUR 3.5 million. The airport is a reproduction of Hamburg's international airport and includes 40 aircraft that take off and land and 90 vehicles that autonomously move around the runways. (Photo by Stuart Franklin/Getty Images)