Tomason
a useless structure that has been preserved, as part of a built environment, which has become a piece of art in itself / From Wikipedia, the free encyclopedia
A Tomason (トマソン), also spelled Thomason and Thomasson in English,[1] is a kind of conceptual art or found art. Gempei Akasegawa created this word to describe certain kinds of useless parts of buildings or roads.[2] These have lost their purpose as the environment around them changed.[3] This kind of art is not made on purpose, but becomes art when people observe and recognize it.