Description: [caption id="" align="aligncenter" width="300" caption=""EXIT" sign in the Smithsonian Institution Building (i.e. "The Castle Building"), by Adam Gerard, Creative Commons: Attribution BY-NC-SA 2.0."][/caption] We agree, Adam! The Smithsonian “Castle” takes the cake for vintage details. Via @voteprime on Twitter: “I am fascinated by this EXIT sign I saw at the Smithsonian
Description: [caption id="" align="aligncenter" width="360" caption="Steven Cohn, the Smithsonian’s Office of Safety, Health and Environmental Management and the museum’s representative Industrial Hygienist, tests Owney's fur for arsenic, lead and mercury. Courtesy of the National Postal Museum "Pushing the Envelope" blog."][/caption] More interesting preservation challenges. We’ve covered