Here's what Wikitravel has to say about the major war museum in (or near) Arnhem:
"The Airborne Museum ‘Hartenstein’ in Oosterbeek, The Netherlands is a museum dedicated to the Battle of Arnhem, fought in September 1944. During the battle the building was the headquarters of the British forces fighting in and around Oosterbeek and Arnhem. The Museum shows a diverse and extensive collection of original weapons, uniforms and equipment, alongside interviews, pictures and videos about the battle. In addition to this collection, the museum has an award-winning Airborne Experience exhibition, that depicts the area as it appeared during the battle. The museum also describes the German and civilian perspectives of the battle. Take trolly bus nr 1 direction Oosterbeek. [17] Price adult €8 13-18y €5 6-12y €3,5. Not that far from the museum, there is also the Airborne War cemetery. It was established in 1945 and is home to 1759 graves from the Second World War. Several nationalities are buried here (British, Polish, Canadian, Dutch, Australian and New Zealand)."
The lower level of the museum has a new display devoted to experiences of ordinary Dutch residents during the two battles over the bridge. Very touching.
There is also a small museum at one end of the current bridge. I do mean small. The bridge itself is a mundane rebuild with little except memories connecting itself to the famous Bridge Too Far campaign.