Budapest is one of the most historical cities that made me happy. Here you can spend at least one week or more without getting bored. Thanks to nice tour guide, Aniko Tatar, the walking tour was really satisfied, when I was there. She answered each question and gave more information than we expected. We traveled both sides of the city, with lots of discussions with her so that we did not understand how the time end up so quickly. My suggestion, If you decide to go there make your long enough and try to find Aniko for the city tour.