At
Smailholm Tower near Melrose in the Border District; counting from the car park to the tower plus up and down the spiral staircases. Track left to give an idea of where exactly we were, but it couldn't keep track inside the tower, apparently. Plus I forgot to stop it until we were a ways down the road.
Smailholm is notable because 1) it's near the Border with England and therefore was historically a base for either raiding farms across the border or for defending Scotland, and 2) it's also close to where Sir Walter Scott's grandparents lived (the farm property we drove through to get to the car park) and where he spent a lot of time while growing up, being inspired by the tower and the ballads told about what happened in the area. 3) It's really impressive to see as you come down the road towards it, standing tall with few or no trees around it. And you can see England from there (including Flodden Field, site of an England-Scotland battle in 1513 where the Scottish King, James IV, died).
On the way back west, headed to Lanark and the Clyde River Valley, we went under another
railway viaduct (not used by trains) over the Tweed R, this one made of bricks and having 19 arches. Very impressive.