Tempelhof was designated as an airport by the Ministry of Transport on 8 October 1923. The old terminal was originally constructed in 1927. In anticipation of increasing air traffic, the Nazi government began a massive reconstruction in the mid-1930s. While it was occasionally cited as the world's oldest operating commercial airport, the title was disputed by several other airports, and is no longer an issue since its closure.
Tempelhof was one of Europe's three iconic pre-World War II airports, the others being London's now defunct Croydon Airport and the old Paris – Le Bourget Airport. It acquired a further iconic status as the centre of the Berlin Airlift of 1948-49. One of the airport's most distinctive features is its large, canopy-style roof, which was able to accommodate most contemporary airliners in the 1950s, 1960s and early 1970s, protecting passengers from the elements. Tempelhof Airport's main building was once among the top 20 largest buildings on earth; in contrast, it formerly had the world's smallest duty-free shop.
Tempelhof Airport closed all operations on 30 October 2008, despite the efforts of some protesters to prevent the closure. A non-binding referendum was held on 27 April 2008 against the impending closure but failed due to low voter turnout.
Tempelhof has been used since closing to host numerous fairs and events. The fields will be used as a park indefinitely.
References:The Walls of Constantinople are a series of defensive stone walls that have surrounded and protected the city of Constantinople (today Istanbul) since its founding as the new capital of the Roman Empire by Constantine the Great. With numerous additions and modifications during their history, they were the last great fortification system of antiquity, and one of the most complex and elaborate systems ever built. They were also the largest and strongest fortification in both the ancient and medieval world.
Initially built by Constantine the Great, the walls surrounded the new city on all sides, protecting it against attack from both sea and land. As the city grew, the famous double line of the Theodosian Walls was built in the 5th century. Although the other sections of the walls were less elaborate, they were, when well-manned, almost impregnable for any medieval besieger.