Maximum 10 minutes by car (or 20 min. by walking) from historical Sultanahmet Square where you can visit world famous BLUE MOSQUE, Topkaki Palace, St. Sophia (Hagia Sofia), Yerebatan Cistern Basilica.(istanbul apartments) Also 5 min. to Taksim Square where you can find several alternatives for transportation. (Metro,buses,minibuses or Taxies) !!! This is very good chance to explore Istanbul.