Many structures in the mediastinum have asymmetrical relationships. For example, the pulmonary artery is superior to the main bronchus on the left side but is anterior on the right side. The pulmonary trunk is not in the midline, but to the left of the midline, and bifurcates anterior to the left main bronchus. Students often find these asymmetrical anatomical relationships difficult to remember, but comprehension of these relationships is important for interpreting sectional images, such as CT and MRI scans. This article describes a representation formed by a waltzing couple of two students that can be used to teach the asymmetrical anatomical relationships among the trachea, bronchi, pulmonary trunk, and the pulmonary arteries in the mediastinum. (Contains 1 figure.)