The Galata Bridge crosses the Golden Horn into Eminönü and the mouth of the Bosphorus opens into the Marmara Sea. And up on the hill stands Topkapı Palace, the Blue Mosque (Sultanahmet Camii) and Hagia Sophia (Aya Sofya). Thus Eminönü is the main tourist destination in Istanbul. It was a part of the Fatih district until 1928, which covered the whole peninsular area of old Istanbul within the medieval city walls - that area which was formerly the Byzantine capital Constantinople. Since the resident population of Eminönü is low today, it rejoined the Fatih district in 2009.
Let hoppa ensure that you reach those important tourist attractions stress free and refreshed.