Walk just 15-20 minutes down to Uskudar square, one of the main hubs on the Asian side of Istanbul. From there, it's an amazing, but short ferry ride to points of interest on the European side: Eminonu (historical peninsula, including the Blue Mosque and Aya Sofya), Besiktas (where you'll find a lot of bars, clubs, and a football stadium), or Taksim (the nightlife district). Or, take a short bus ride (10 minutes) to Kadikoy, the hipster/arts side of town. This could be the best neighborhood in the city for a visitor who wishes to avoid traffic by walking everywhere or taking boats instead of busses!