Tempelhofer Feld
Of all Berlin’s many transformations, this one—from airport to park—might be the quickest. The iconic airport (it was the site of the 1948–49 Berlin airlift) had its last flight in 2008. Only two years later, it opened as a park, complete with untouched runways. It's now one of the city’s most beloved and impressive outdoor spots, where bikers, skaters, kite flyers, urban gardeners, picnickers, and grillers all gather. You can explore the Nazi-era airport buildings on a two-hour tour (book online), and there are also frequently rotating exhibitions and lectures on the airport's history at the visitor center to the left of the main entrance. You can also visit the former traffic control tower (THF Tower) for city views along with the exhibition "100 Years of Tempelhof Airport."