"Since 1998, Ingo Giezendanner alias GRRRR documents the urban spaces in which he stays at the moment. From Zurich via Nairobi, New York and Karachi to Cairo and New Orleans he drew his surroundings on location with pen on paper..."

The great, great "Urban recordings" by GRRR is now completely online.
http://www.grrrr.net/urban/grr30_002.html
Here's a few beautiful ones from NY: