Origin of graben
Examples from the Web for graben
Trotsky, Stalin, and Hitler were all in Vienna in 1913, so maybe they did pass within 10 feet of each other walking down Graben.William Boyd on James Bond and His New Novel, Waiting for Sunrise|Lucy Scholes|April 19, 2012|DAILY BEAST
Every one seemed as joyous and carefree as on the Graben in Vienna on a sunny spring Sunday in times of undisturbed peace.Men in War|Andreas Latzko
Lately up have I them graben, and likewise his tutelar Sphynx have found, and have even to give signs of animation compelled.'The Two Sides of the Shield|Charlotte M. Yonge
The district, too, was less formidable than the neighborhood of the Karntnerstrasse and the Graben.The Street of Seven Stars|Mary Roberts Rinehart
The depression is probably a “Graben” or trough formed by faulting.
The dusk of the evening saw Milor in the dress of a porter, pacing the Graben with a steady step.A Tramp's Wallet|William Duthie