The March Field

The March Field was intended to be a huge arena where Wehrmacht manoeuvres, mock battles and displays of military prowess could take place......it would be 955m x 610m (compared to 312m x 285m for the Zeppelin Field).....more than six times the size.

The location of the March Field at the end of the Great Avenue

The name, March Field, commemorated the re-introduction of military conscription in March 1935. 
The perimeter was to be marked by 24 granite towers, each about 40 metres high and a central grandstand was planned to feature colossal statues of warriors and a goddess of victory.
Work on clearing the area began in 1935 but construction of the tower foundations was delayed until after the 1936 rally.

This image gives an impression of how much granite would be needed to complete the arena

The image shows a full scale mockup of a March Field grandstand flanked by two towers
In the background (linked by the Great Avenue) is the mockup of the new Congress Hall

Hitler visiting the March Field mockup in 1937.....the completed arena would be capable of seating over 170,000 spectators

An image from after the war but the cleared area beyond the three towers gives some idea as to the size

The March Field scaled with the Wembley Stadium area

Construction was halted in 1939 due to the outbreak of WWII with only 11 of the planned 24 towers built.
There was a brief restart in 1940 after the fall of France but this did not last long.
The incomplete sections were hidden under camouflage netting to hide them from Allied bombing.