Washington, DC, is the capital of the US but also home to almost three quarters of a million people. The architecture is varied and increasingly high rise. Driving around DC, I realize how much I do not know about the architecture or history of DC. For a guide to the basic styles of homes in DC, check out this link.
In Denmark, in the old days, some of the houses had mirrors for the busybodies.
Or perhaps it was so that the homebodies could get their fill of the outside without going outside?