On Monday, we began our second day in Scotland with hopes of touring the Palace of Holyroodhouse, but the Queen was there, meaning no tours were to be conducted.  So, we walked to Edinburgh Castle and saw the prisons where (eventual) American POWs were kept during our Revolutionary War. Did you ever think about that?  The fact that colonists were taken as POWs and shipped to modern day Scotland to be imprisoned?  I hadn’t until I saw a carved flag in the wood. We also saw where loyal…