It is not clear what you mean to ask. Human made structures are anything built by humans, from house, bridges, airplanes and ancient temples to nuclear power plants. "Who" indicates a person. Please rephrase your question.
pyramids
The Great Pyramid
The Great Pyramid
The Great Pyramid
The great pyramid also The building of Egypt's largest pyramid began about 2600 B.C. at Giza (GEE zuh). It is called the Great Pyramid, built for the pharaoh Khufu. Archaeologists and historians estimate that this pyramid took about 20 years to build and that slave labor was not used. Until the 1800s, the Great Pyramid was the tallest structure in the world made by people.
It was made in the 1800s It was made in the 1800s It was made in the 1800s It was made in the 1800s
My carport.
Not until the mid-to-late 1800s
Brooms were made of birch and willow twigs until replaced in the early 1800s by broomcorn straw (actually a type of sorghum).
udu hk
Probably the Great Pyramid.
Great Wall of China?