Basel Tattoo is an annual military tattoo show performed by International military bands, display teams, popular musicians, and tattoo formations in Basel, Switzerland.Since 2006, Basel Tattoo has had annual stage-arena performances within the Basel Kaserne (old barracks) (now also known as Basel Tattoo Arena) and hosts two parades in July. The Basel Tattoo parade, with an estimated 125,000 visitors, is considered the largest event.