Visit Greyfriars Bobby
Bobby the dog is well-known and well-loved in Edinburgh. In the 1800s, John Gray worked as a night watchman and brought Bobby the dog along to keep him company while he worked. John fell ill and eventually passed away, and unwilling to leave his side, Bobby sat by his grave for 14 years, only coming and going as needed. The townspeople made sure he had food and water and shelter if necessary, but Bobby remained loyal to John and always kept watch over him.
Because he is such a legend in Edinburgh, he has a statue outside Greyfriars Kirkyard where everyone stops ton rub his nose for luck. Make sure you do the same.