Lake Tegel Lake Tegel Lake Tegel () (), is the second largest lake in Berlin, Germany. It is situated in the northwest of the city in the Reinickendorf borough, in the "Ortsteil" of Tegel. The historic name "Tegel" (first recorded in 1322 as "Tygel") is common for a larger territory and also used for the settlements of the Tegel locality, the "Tegelort" ("Tegel Village") neighbourhood within the Konradshöhe locality and the Berlin-Tegel International Airport. The lake is connected to the navigable River Havel, which flows in and out of the lake at its western end. The lake is navigable to its eastern
Airport city Airport city Airport city is the "inside the fence" airport area including the airport (terminals, apron, and runways) and on-airport businesses such as air cargo, logistics, offices, retail, and hotels. The airport city is at the core of the aerotropolis, a new urban form evolving around many major airports. The airport city model recognises that an airport can do more than perform its traditional aeronautical services, evolving new non-aeronautical commercial facilities, services and revenue streams. Airports are now routinely targeting non-aeronautical revenue streams amounting to 40–60% of their total revenues. Industry leaders and researchers share best practices on non-aeronautical revenues