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.
Its innovative area covers the atria of the heart, just as the sinoatrial node does. The bundle of His is a collection of nerve fibers that are seated within the interatrial septum. They forward the electrical impulses from the atrioventricular node and send them on to both the left and right bundle branches. The bundle branches are an accumulation of continuing nerves that innervate the ventricles and the interventricular septum of the heart.