Dada is one of my favorite art movements. Here is a description from Wikipedia:

Dada or Dadaism is a cultural movement that began in Zürich, Switzerland, during World War I and peaked from 1916 to 1922.[1] The movement primarily involved visual arts, literature—poetry, art manifestoes, art theory—theatre, and graphic design, and concentrated its anti-war politics through a rejection of the prevailing standards in art through anti-art cultural works. Its purpose was to ridicule what its participants considered to be the meaninglessness of the modern world. In addition to being anti-war, dada was also anti-bourgeois and anarchistic in nature.

I like both the mindset and the aesthetic of the movement. The collages, assemblages, or even the "readymades" or "found art" such as the one by Marcel Duchamp. He took a urinal, turned on its back, signed r. Mutt, and titled "Fountain".

I saw the urinal last summer when it was in Helsinki : D I really like dada. It's so nihilistic. I think all styles have been anarchistic at the time. But dada is still one of my favourites : D