vandalism

n. purposeful destruction or damage of something that is beautiful or something that belongs to someone else; practices or spirit of the Vandals

Vandalism is the conspicuous defacement or destruction of a structure, a symbol or anything else that goes against the will of the owner/governing body, and usually constitutes a crime. Historically, it has been justified by painter Gustave Courbet as destruction of monuments symbolizing "war and conquest". Therefore, it is often done as an expression of contempt, creativity, or both. Vandalism is only a meaningful concept in a culture that recognizes history and archaeology. Like other similar terms (Barbarian/barbary, and Philistine), the term Vandal was originally an ethnic slur referring to the Vandals, who under Geiseric sacked Rome in 455. The Vandals, like the Philistines, no longer exist as an identifiable ethnic group.
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Noun
1. willful wanton and malicious destruction of the property of others
(synonym) hooliganism, malicious mischief
(hypernym) mischief, mischief-making, mischievousness, deviltry, devilry, devilment, rascality, roguery, roguishness, shenanigan

(n.)
The spirit or conduct of the Vandals; ferocious cruelty; hostility to the arts and literature, or willful destruction or defacement of their monuments.
  

vandalism