Camera Obscura

Evening walk past the Dumfries Museum and Camera Obscura - a beautiful building, which started off as a windmill. 
Dumfries Museum & Camera Obscura Feature Page on Undiscovered Scotland
A copy of this can be found in Gifhorn, Germany - the town is twinned with Dumfries. File:Gifhorn Windmühle Lady Devorgilla (1).jpg - Wikimedia Commons Girhorn also has a windmill museum.