Chinese Fire Escape

Yep, it really is. The blue building behind is a day care. The green

gate is the Fire Marshall approved egress route in case of fire or

earthquake. The gray structure to the right, and the green structure

to the left are illegal squatter's houses, and the wall built between

them is a result of a feud between neighbors. The Fire Marshall

doesn't care. The zoning department doesn't care about the illegal

houses. And what is left is a wall between them about 20cm taller than

the tallest pre-schooler.