carSource:  Abandoned cars over the world Such a great photograph. I'm not sure how abandoned that car actually is but... it makes a great photograph. Find even more (available as prints) on Wayne Stadler's site. I enjoyed seeing them, some are exceptional!
She also leaves her art in abandoned buildings, like these. This could be an exception to the leave only footprints rule of exploring. Besides, these would harm nothing and they are not permanent.
Just because street art is a relatively modern development doesn't mean that it should only feature modern artistic styles. NeSpoon, a street artist in Poland, creates beautiful pieces of street art that imitate traditional intricate lacework. Nespoon doesn't limit herself to just spray paint and stencils, either - she also uses cement and actual crocheted lace.
Source: Polish Artist Covers City Streets In Intricate Lace Patterns | Bored Panda
via - ASCII Hotel I saw this and got the idea of posting urban exploration photos scanned as ASCII art. As a large image they would look interesting, more derelict and digital.
Russian photographer Edward Gordeev takes beautiful photographs of city streets and people during rain that looks like painting. Most of the photographs have been taken at night with all the lighting on the streets...
Hard to believe these are photographs. I love a rainy day and rain, overcast days are great for taking photographs, especially for the abandoned and derelict places. The camera captures more light and shadow when there is less light but still enough light to see everything in sharp, crispy clarity. Rainy days are great for photographing ruins. I found this post on NetDost and even though it isn't exactly about urban exploration it is about photography and I sincerely love the photos and want to remember them. Not sure it's the best technique for rural/ urban ruins when I want to see every detail, but they do have the sad and mysterious atmosphere just right. At the end of the post a link was given as a source for the photographer, but I'm not sure it is a direct link versus a photo sharing site in Russia.