The former Amsterdam Main Post Office, today a luxury shopping mall known as Magna Plaza, is a monumental building in the Old Centre of Amsterdam just behind Amsterdam's Royal Palace.
The building's interior consists of a central hall with galleries on two upper floors, surrounded by arcades and crowned by a sunroof. The public function of the building was limited to the ground floor, while the rest of the building was only accessible to personnel of the PTT, the national Dutch postal services company.