It is located at the junction of Stadiou Square and Fokianou Street, next to the Panathenaic Stadium (Kallimarmaro), in Athens.

Four years later, in 1970, when the Hellenic Post Organization was established, the effort for amassing and sorting out the material meant for the museum begun.

Eventually, in 1977, benefactors Nia and Andrea Stratos donated the building that houses the museum to this day.

Before the ELTA was privatised, the Greek government put the Museum under the control of the Ministry of Development, Competitiveness, Infrastructure, Transport and Networks.

The museum showcases objects used by the united Postal, Telegraph, and Telephone Service, including mailboxes, postman bags, horns and uniforms, envelope sealing machines, safes, bicycles, motorcycles, and dispatch materials.