Clearly the chimney is to the right but what is the small circular thing that spins on the left hand side of the photo?


I feel like I’ve definitely noticed these before but I can’t remember why there are three lights. Anyone know what this is?


This is truly a bizarre contraption. It appears to be some sort of mirror contraption outside of a second floor window. Any ideas here?


I feel like I’ve asked about this before but I can’t remember. I know it has something to do with the military. What does this flag signify in a window?


You guys haven’t been stumped yet this week. Ever actually. So this is located on a huge piece of land not terribly far from Tenleytown. Here’s the corner where I took the photo:

Was this a former military testing ground or something like that?


There is a fenced off vacant lot on the 900 block of S Street, NW that has me baffled. Was this a playground at one point? What’s the metal structure inside? Anyone know what’s going on here? It seems so random on a traditional street filled with classic rowhouses.


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