Stark, sprawling Dutzendteich is the site of the former Nazi Party Rally Grounds. Remaining structures include the Zeppelin Field with grandstand, towers, and ramparts, plus a colossal congress hall, now home to a documentation center with Nazi history exhibits. Ponds and lakes dot the area, a few within Volkspark Dutzendteich, and a sports complex offers an ice hockey arena, a soccer stadium, and an outdoor pool.