I saw some posts about pedestrian streets to walk through in Amsterdam. I would recommend walking on Hoofstraat and Hobblematstraat, which is located between Vondelpark and Museumplein. These two streets are perpendicular to each other and seems to be Amsterdam's "high streets." Vondelpark itself is quite beautiful to walk through. Nearby Vonelpark is the street called Leidsestraat, which connects Leidseplein with Het Spui. This street seems to be a good shopping/pedestrian and tram street.

I would also recommend seeing the Beuers Van Berlage, which is a performing arts center and concert hall named after the famous Dutch architect who designed the building.