IMO, and I could be wrong, but the drive from Minn/St Paul, other than the Mall of America in Minneapolis, has nothing of interest until you get to the Badlands, Custer STate Park, Crazy HOrse, Mt Rushmore area. Deadwood SD for a day and night, I found to be of interest.
Sinoatrial node is located at the junction of the superior vena cava with the right atrium.
Each cusp is attached to the wall of the aorta by the outward edges of its semicircular border. The level at which this attachment occurs is known as the sinotubular junction and is the functional level of the aortic valve orifice.