Worst road I drove a car on was the Road to Hana on Maui; just not worth the effort... wife actually got sick from all the switchbacks. Worst road I towed a TT on was the Blue Ridge Parkway. Up, down; up down, around the the corner; then down up. Just couldn't enjoy it. Amazed anyone finds it enjoyable. Best road for towing was the Natchez Parkway. Flat, no traffic, speed limit of 50 mph, picturesque, counted 12 cars in either direction for the first 50 miles from Natchez in late March or early April ..... most relaxing, enjoyable TV + TT drive ever.