As of October 2017 the entrance fee is 6 euros each for adults
Sorry, I didn't see your question earlier. There is no fee, it's free
There is no entrance fee for the for the Reichsparteigelande! It consists of several buildings and what is now a sports field and an auto race track. It is best seen by car and can be done in less than an hour. The 5€ entrance fee is to the Museum - which happens to be located ON the Reichsparteigelande.
Get quick answers from Reichsparteigelande (Nazi Party Rally Grounds) staff and past visitors.