Camera Obscuras

This page provides links to various websites showing how to build your own camera obscura, as well as images of the many different forms they can take from shoe boxes to a caravan. 
https://petapixel.com
http://www.pinholephotography.org
www.stormthecastle.com/Things/how-to-make-a-camera-obscura.htm
​For a range of interesting information and projects around camera obscuras visit 
bhamobscura.com/
https://drawingmachines.org/category.php?id=41​
http://ipip-project.eu/project/psychogeographical-camera-obscura/