Charleston is a city known for its rich history, southern cooking, and picturesque waterfront views. As such, it’s no surprise that visitors are often enchanted to find a line of beautiful pastel painted houses on the main strip downtown. They are a part of none other than the aptly named Rainbow Row. Rainbow Row’s origins stretch back to the 1920s when Susan Pringle Frost, a prominent local historic preservationist, took the buildings under her wing as they’d fallen into disrepair since the Civil War. Frost wanted to restore them, but…