Which is located closer to the Grand Post Office building at Sirkeci quarter of Fatih district in Istanbul, Veliefendi Race Course or Istanbul Postal Museum
Istanbul Postal Museum: The Istanbul Postal Museum, aka PTT Museum Istanbul (Turkish: "PTT İstanbul Müzesi" ), is a postal museum dedicated to the historical development of mail and telecommunication services in the Ottoman Empire and Turkey, exhibiting related equipment and instruments as well as a collection of postage stamps.
i don't know