It’s quite dificult to find places where you can spot Bucharest from the air. These pictures are from one celebration that allowed people to visit the Arch of Triumph (Arcul de Triumf), which you can see it here.
The building from the rear view is the House of the Free Press (Casa Presei Libere), one of the most known buildings from Bucharest and in fact the headquarter for many Romanian newspapers. It was the tallest building from the city between 1956 and 2007. During the Communist regime is was known as “Casa Scînteii“.