urban canyon -- αστική χαράδρα, αστικό φαράγγι
Häuserschlucht → αστική χαράδρα, αστικό φαράγγιAn urban canyon (also known as a street canyon) is a place where the street is flanked by buildings on both sides creating a canyon-like environment, evolved etymologically from the Canyon of Heroes in Manhattan. Such human-built canyons are made when streets separate dense blocks of structures, especially skyscrapers. Other examples include the Magnificent Mile in Chicago, Los Angeles' Wilshire Boulevard corridor, Toronto's Financial District, and Hong Kong's Kowloon and Central districts.
Urban canyon - Wikipedia