2002 Pirelli Tower airplane crash
On 18 April 2002, a privately operated single-engine Rockwell Commander 112TC flying from Locarno Airport, Switzerland, to Milan Linate Airport, Italy, crashed into the upper floors of the Pirelli Tower in Milan, Italy. The pilot – the aircraft's sole occupant – and two building employees were killed, and 60-70 others were injured.
Source: Wikipedia — 2002 Pirelli Tower airplane crash (CC BY-SA 4.0)