You may have taken a stroll through Princes Street Gardens on a summer's evening, but did you know it was a loch?
There is another fascinating story that happened at Edinburgh University, 40 years after the tale of William Burke and William Hare.
What are you up to on the 31st?
In 1820s Edinburgh, the Industrial Revolution was in full swing.
Many will walk past the Witches' Well and not notice it, tucked away into the wall of the Edinburgh Castle esplanade.