Berlin, Potsdamer Platz
The Potsdamer Platz was completely destroyed after the war, but after reconstruction it is full of modern office buildings and one of the busiest crossings in Europe. After the Second World War, the square located between the American, British and Russian sectors, became a no-man's land. The square, together with several adjacent blocks were redeveloped under the supervision of the architects Wilmer and Sattler in 1990s. The first building completed was the Debis tower, by Renzo Piano and the Sony Center, a complex designed by Helmut Jahn which includes an IMAX theater and an office tower.