I came across this gem scanning through the Architect of the Capitol’s website. I had to share it with you tonight. Click on it for the higher resolution image. It’s pretty amazing to take a look at the details and the stores on the left, lining Pennsylvania Ave before the Civil War.
Try and stay cool. It’s ridiculously hot outside.

I’m confused. The other photo you just posted on here, which clearly shows the Capitol dome already partially built says 1846. But somehow 12 years later, the dome is gone?
The old dome pictured here https://ghostsofdc.org/2012/06/22/capitol-building-john-plumbe-1846/ was the old Bulfinch dome. Congress passed legislation in 1855 to build a newer dome (the current one).
http://en.wikipedia.org/wiki/United_States_Capitol_dome