It's an ISIS puzzle.

That should be 'Palau' not 'Paulau'. I remember seeing some of the Rai stones when I visited Yap. And on the matter of the Canadian Tire money, we used to get something similar from Esso in the UK, but they stopped it years ago, to my utter disappointment.

It's a sundial.

I've been in that lake! It's pretty surreal in there, to say the least.

Thanks in advance if you get this far down the list....