Why would they be the the ultimate accomplishment? Not the biggest building. No where near the Suez canal let alone the Panama canal. Not the biggest nor the best, making things in a pyramid is the easiest foem of building. SO no not mans greatest achievement .
Given the fairly high quality of construction, it is quite possible that the Pyramids are the greatest achievement relative to all other achievements at a relative technological scale. Technically the Great Wall may have been physically larger and more difficult but the quality of both the stonework and the effectiveness was a mess.
The next truly spectacular architectural achievement was probably the Roman Colosseum. One of the most technologically advanced structures ever created relative to it's own technological era. Could hold thousands of spectators, be filled with water deep enough to showcase naval battles, had a self contained sewer and sanitation system, and structurally sound enough that most of it still stands today. In fact, most Roman architecture was highly advanced. There are still Roman-built roads in use today with minimal upgrading.
The greatest single invention mankind has ever made, however, is the transistor.
Never mind the space station, the nuclear reactor, the Curiosity Mars rover. Apollo 11 , all of it.
The transistor is directly responsible for nearly every major advance made in the last century since it's invention. Radios. Computers. Widespread access to lighting, shelter, education, communication, food and goods, transportation, and much more. The transistor has directly advanced us as a species probably more than any other technology since we learned to create fire.
Just quit as a laborer in remodel construction
>level of education
Finishing High school
>Are you happy?
No. The others of the company were paid more. I was doing all of the physical labor, and they were .... no one knows where they were during the day. They weren't on the job sites.