Some street artists create three-dimensional sculptural interventions, which could be put in surreptitiously in public spaces, often under the duvet of darkness. This type of work differs from Public Art in that it’s rebellious in nature and completed illegally, whereas Public Art is formally sanctioned/commissioned . Unsanctioned Street Art interventions usually goal to shock viewers by presenting a visually practical, yet simultaneously unbelievable state of affairs. For occasion, in his Third Man Series , artist Dan Witz installs gloves on sewer grates to offer the impression that an individual is contained in the sewer making an attempt to escape. Soon …