This travel channel show seems to be a spin off from their Mysteries at the museum series. Generally there are four tales about the various castles around the world. From the more modern mansions of the US to the ancient castles of Europe there are many amazing tales of love, loss, theft, murder and more.
If you are a fan of history then this series is a good one. Told in a series of little vinettes it is a fun watch. Not at all dry and boring it is a great way to get people to learn history of some of them most imposing buildings in the world.