Here we can see the construction of the Washington Monument back in the 1850’s. The monument began construction in 1848, but from 1854 until 1877 construction was halted due to a variety of reasons such as lack of funds, and the Civil War.
This is a photo of the monument while construction was halted during this 20 year span. The monument was finally completed in 1884, and officially opened in 1888. I’m sure it is hard to imagine that the great Washington Monument once resembled a lighthouse.