In order to connect the apparatus factory to the Ackerstraße, a 295-metre-long tunnel was built through which electrically powered trains transported workers and material between the two locations.
New means of transport were in demand at that time. Siemens proposed a "cobbled railway", while AEG favored a subterranean tube railway based on the London model. In the end, Siemens won through initially with the cheaper concept of an elevated railroad. However, AEG continued to use its tunnel internally and for testing purposes. Around 1910, the eastern tunnel ramp was demolished and the tunnel was extended into the basement of a new building. During the First World War, the tunnel was used for ammunition production and during the Second World War as a "factory air-raid protection facility" for the company's employees. In 1984, AEG finally closed down the site. On the eastern half of the site, an investor had almost all the historical building fabric removed in order to locate his production in a modern glass palace. The remaining factory buildings, which are now listed as historic monuments, house a business incubator and a technology park.For a long time, the experimental tunnel itself was no longer accessible and was partially flooded. But since the spring of 2016, with the support of its owner, GSG, the association has been repairing the building and reopening the historic track.Our visitors receive an introduction to the historical development of the site before they explore the "first underground tunnel in Germany".
The tour lasts about 90 minutes.
Meeting point: Voltastraße 5-6,13355 Berlin, in the courtyard next to stairs 12.1, (after 50m keep left on the premises). No parking on the premises!
admission ticket is valid only for tour A and only at the indicated date and
time. No exchange, refund or redemption. Tickets are
available up to 2 days before the tour. A maximum of 10 tickets can be
purchased per booking. Sturdy,
closed shoes are required (no sandals, flip-flops, high heels), warm clothing
is recommended (interior temperature all year round approx. 10°C). Part of the
tour takes place outdoors. The tour lasts about 90 minutes. No toilets
available.Persons under 14 years of age cannot take part in this tour. Proof of
age must be presented at the entrance if necessary. Participation of minors
aged 14 and over only in the company of a parent or guardian.