Over on boingboing.net, Cory Doctorow tells us "Model railroader John Ott has devoted years to creating a fantastically detailed, HO-scale recreation of Arkham, the site of HP Lovecraft's horror stories, complete with model railroad engines and historically accurate cars." Learn more here.
Also, on bbc.com, they tell us that William Smith's "Seminal geology map [has been] rediscovered" here.
Finally, on the Dungeonmaster Mark YouTube channel, DM Mark shows us a "Simple Sewer setup." Enjoy!