(2x PictureInPicture, hover your mouse at the photo to see them)
Germanys deepest underground-station (tracks are 26 metres under ground). At this photo you see Germanys longest escalators which will go to a level of 22 metres down (but I don´t know how long they are). It takes 90 seconds to get down to the station only by this escalator (there are a second, smaller one before). :-)
Another angles: www.ipernity.com/doc/kiezkicker/4848539 and www.ipernity.com/doc/kiezkicker/4848540

de.wikipedia.org/wiki/U-Bahnhof_Messehallen
www.hamburger-untergrundbahn.de/met-hh-mh.htm

Gruppe Theme of the week: Tunnel.