Should you be heading northeast from Glasgow towards the land of the Kelpies, with a little bit of a diversion you might discover one of Scotland's enduring mysteries - that of the little-known Blue Pool of the Tor Wood.
A little wander will bring you to a clearing in this forest just outside of Falkirk, where you'll find a magical-looking manmade brick pool.
The haunt of famous historical figures such as Sir William Wallace and Robert the Bruce, this forest has a rich history, but it's the blue pool that remains one of its most intriguing features.
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