Wis. Stat. § 972.06

The court may order a view by the jury. The trial court, sitting as the trier of fact, committed an error of law in making and relying on an unrequested, unannounced, unaccompanied, and unrecorded view of an accident scene in assessing evidence produced at trial. American Family Mutual Insurance Co. v. Shannon, 120 Wis. 2d 560, 356 N.W.2d 175 (1984).