When my oldest daughter Payton graduated this year from university with her undergraduate degree, I knew we had to plan an epic adventure together to mark the occasion. Since we loved Scotland so much last fall during Reading Week, we decided London would be logical and it just made sense. We still had our UK electronic travel visas, because they are valid for two years from the time you receive approval. Beyond that, we were both dying to see a few unique landmarks like Buckingham Palace, Big Ben, and Stonehenge. So we were off to the UK again! Our Unforgettable…